Portland Harbour - Castle Cove (Beach) (Dorset) weather

Next hour

6° Celsius
Cloudy
  • Feels like 3°
  • Rain <5%
  • Max gust 27mph from ENE Max gust 27mph from the east northeast

8° Celsius
Overcast
  • Feels like 5°
  • Rain <5%
  • Max gust 27mph

7° Celsius
Sunny intervals
  • Feels like 3°
  • Rain <5%
  • Max gust 26mph

7° Celsius
Sunny
  • Feels like 3°
  • Rain <5%
  • Max gust 27mph

6° Celsius
Sunny
  • Feels like 3°
  • Wintry showers <5%
  • Max gust 18mph

8° Celsius
Cloudy
  • Feels like 4°
  • Rain 30% at 6pm
  • Max gust 28mph

7° Celsius
Sunny intervals
  • Feels like 3°
  • Rain 20% at 12pm
  • Max gust 19mph

6° Celsius
Sunny intervals
  • Feels like 2°
  • Rain 10% at 9pm
  • Max gust 15mph

Forecast days

7 day forecast for Portland Harbour - Castle Cove (Beach)

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols and temperature
Cloudy
Cloudy
Sunny intervals
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Cloudy
Overcast
Overcast
Overcast
Overcast
Chance of precipitation
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
Wind speed and direction
13mph
12mph
13mph
13mph
13mph
12mph
12mph
11mph
10mph
10mph
11mph
11mph
11mph
11mph
11mph
11mph
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols and temperature
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Cloudy
Partly cloudy night
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Partly cloudy night
Partly cloudy night
Partly cloudy night
Partly cloudy night
Cloudy
Cloudy
Overcast
Overcast
Chance of precipitation
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
Wind speed and direction
10mph
10mph
11mph
11mph
11mph
11mph
10mph
11mph
11mph
11mph
12mph
12mph
13mph
13mph
12mph
11mph
11mph
11mph
11mph
12mph
12mph
12mph
11mph
11mph
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols and temperature
Overcast
Overcast
Overcast
Cloudy
Partly cloudy night
Partly cloudy night
Partly cloudy night
Clear night
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Chance of precipitation
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
Wind speed and direction
10mph
11mph
11mph
12mph
13mph
13mph
14mph
14mph
14mph
13mph
14mph
14mph
14mph
14mph
13mph
11mph
10mph
9mph
10mph
10mph
10mph
10mph
10mph
9mph
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols and temperature
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Partly cloudy night
Chance of precipitation
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
Wind speed and direction
9mph
9mph
9mph
9mph
9mph
9mph
9mph
9mph
8mph
8mph
7mph
7mph
7mph
6mph
6mph
6mph
5mph
5mph
5mph
5mph
5mph
5mph
5mph
5mph
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols and temperature
Partly cloudy night
Partly cloudy night
Partly cloudy night
Partly cloudy night
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Partly cloudy night
Chance of precipitation
<5%
<5%
<5%
<5%
<5%
<5%
10%
10%
10%
10%
10%
10%
10%
20%
20%
20%
20%
30%
30%
30%
30%
20%
30%
20%
Wind speed and direction
5mph
5mph
5mph
6mph
6mph
7mph
8mph
9mph
9mph
10mph
11mph
12mph
14mph
14mph
14mph
14mph
13mph
12mph
12mph
11mph
11mph
10mph
10mph
10mph
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Weather symbols and temperature
Partly cloudy night
Partly cloudy night
Cloudy
Sunny intervals
Sunny intervals
Partly cloudy night
Partly cloudy night
Partly cloudy night
Chance of precipitation
20%
10%
20%
20%
20%
10%
10%
10%
Wind speed and direction
9mph
9mph
9mph
9mph
12mph
11mph
10mph
10mph
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Weather symbols and temperature
Partly cloudy night
Partly cloudy night
Partly cloudy night
Sunny intervals
Sunny intervals
Partly cloudy night
Partly cloudy night
Partly cloudy night
Chance of precipitation
10%
10%
10%
10%
10%
10%
10%
10%
Wind speed and direction
9mph
9mph
9mph
9mph
11mph
10mph
8mph
8mph
Select units

Tides

low tide

4:46am

1.4 metres

high tide

11:44am

3.3 metres

low tide

5:17pm

1.4 metres

Tide information is from Chesil Cove tidal station 2.1 miles away. Times here may vary slightly.

Wind

Daily highest gust

27mph

The wind may affect your control of direction.

Feels like

Daily high

Maximum feels like temperature: 5° Celsius;

Daily low

Minimum feels like temperature: 2° Celsius;

Next rain

Rain <5%

Humidity

Daily high

85%

Daily low

75%

UV

Daily highest level

Low

You can safely stay outside. Consider sunscreen in direct sunlight.

Visibility

Daily high

20km

Daily low

16km

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

Tides

high tide

12:24am

3.1 metres

low tide

5:56am

1.5 metres

high tide

12:55pm

3.2 metres

low tide

6:50pm

1.5 metres

Tide information is from Chesil Cove tidal station 2.1 miles away. Times here may vary slightly.

Wind

Daily highest gust

26mph

The wind may affect your control of direction.

Feels like

Daily high

Maximum feels like temperature: 3° Celsius;

Daily low

Minimum feels like temperature: 0° Celsius;

Next rain

Rain <5%

Humidity

Daily high

86%

Daily low

75%

UV

Daily highest level

Low

You can safely stay outside. Consider sunscreen in direct sunlight.

Visibility

Daily high

26km

Daily low

17km

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

Tides

high tide

1:35am

3.0 metres

low tide

7:39am

1.6 metres

high tide

2:14pm

3.1 metres

low tide

8:21pm

1.5 metres

Tide information is from Chesil Cove tidal station 2.1 miles away. Times here may vary slightly.

Wind

Daily highest gust

27mph

The wind may affect your control of direction.

Feels like

Daily high

Maximum feels like temperature: 3° Celsius;

Daily low

Minimum feels like temperature: -2° Celsius;

Next rain

Rain <5%

Humidity

Daily high

87%

Daily low

61%

UV

Daily highest level

Low

You can safely stay outside. Consider sunscreen in direct sunlight.

Visibility

Daily high

40km

Daily low

12km

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

Tides

high tide

2:48am

3.1 metres

low tide

8:53am

1.4 metres

high tide

3:33pm

3.1 metres

low tide

9:23pm

1.4 metres

Tide information is from Chesil Cove tidal station 2.1 miles away. Times here may vary slightly.

Wind

Daily highest gust

18mph

The wind may affect your control of direction.

Feels like

Daily high

Maximum feels like temperature: 3° Celsius;

Daily low

Minimum feels like temperature: -3° Celsius;

Next rain

Wintry showers <5%

Humidity

Daily high

88%

Daily low

66%

UV

Daily highest level

Low

You can safely stay outside. Consider sunscreen in direct sunlight.

Visibility

Daily high

23km

Daily low

10km

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

Tides

high tide

3:59am

3.2 metres

low tide

9:52am

1.3 metres

high tide

4:46pm

3.3 metres

low tide

10:17pm

1.2 metres

Tide information is from Chesil Cove tidal station 2.1 miles away. Times here may vary slightly.

Wind

Daily highest gust

28mph

The wind may affect your control of direction.

Feels like

Daily high

Maximum feels like temperature: 4° Celsius;

Daily low

Minimum feels like temperature: -1° Celsius;

Next rain

Chance of rain

30%

Rain 30% at 6pm

Humidity

Daily high

89%

Daily low

75%

UV

Daily highest level

Low

You can safely stay outside. Consider sunscreen in direct sunlight.

Visibility

Daily high

28km

Daily low

17km

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

Tides

high tide

5:05am

3.4 metres

low tide

10:46am

1.2 metres

high tide

5:50pm

3.5 metres

low tide

11:08pm

1.1 metres

Tide information is from Chesil Cove tidal station 2.1 miles away. Times here may vary slightly.

Wind

Daily highest gust

19mph

The wind may affect your control of direction.

Feels like

Daily high

Maximum feels like temperature: 3° Celsius;

Daily low

Minimum feels like temperature: 0° Celsius;

Next rain

Rain 20% at 12pm

Humidity

Daily high

88%

Daily low

76%

UV

Daily highest level

Low

You can safely stay outside. Consider sunscreen in direct sunlight.

Visibility

Daily high

24km

Daily low

19km

Air pollution

No air pollution data

Tides

high tide

6:06am

3.7 metres

low tide

11:39am

1.1 metres

high tide

6:43pm

3.6 metres

low tide

11:57pm

0.9 metres

Tide information is from Chesil Cove tidal station 2.1 miles away. Times here may vary slightly.

Sea

Highest wave

0.3m

Lowest wave

0.3m

Enjoy the sea safely. Novice water users should seek advice.

Wind

Daily highest gust

15mph

The wind may affect your control of direction.

Feels like

Daily high

Maximum feels like temperature: 2° Celsius;

Daily low

Minimum feels like temperature: -2° Celsius;

Next rain

Rain 10% at 9pm

Humidity

Daily high

87%

Daily low

71%

UV

Daily highest level

Low

You can safely stay outside. Consider sunscreen in direct sunlight.

Visibility

Daily high

25km

Daily low

20km

Air pollution

No air pollution data

Forecast filters ()

Today

Time and weather

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols
Cloudy
Cloudy
Sunny intervals
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Cloudy
Overcast
Overcast
Overcast
Overcast

Wind

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Speed
13mph Light winds
12mph Gentle breeze
13mph Light winds
13mph Light winds
13mph Light winds
12mph Gentle breeze
12mph Gentle breeze
11mph Gentle breeze
10mph Gentle breeze
10mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction from
ENE cross-onshore east northeast cross-onshore
ENE alongshore east northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
ENE alongshore east northeast alongshore
ENE cross-onshore east northeast cross-onshore
ENE cross-onshore east northeast cross-onshore
ENE cross-onshore east northeast cross-onshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Gusts 27mph 26mph 27mph 26mph 25mph 24mph 23mph 21mph 23mph 23mph 24mph 24mph 23mph 23mph 23mph 22mph

Temperature

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Actual (°C)
Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Feels like (°C)

Sea

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Temperature (°C)

Waves

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Height
0.8m
0.8m
0.7m
0.7m
0.7m
0.7m
0.7m
0.6m
0.6m
0.6m
0.6m
0.6m
0.6m
0.5m
0.5m
0.5m
Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Time between
7s
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction

Humidity

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Humidity
85%
83%
75%
75%
75%
75%
75%
75%
75%
75%
76%
77%
80%
82%
81%
81%

Rain and snow

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Chance
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%

UV

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
UV Low Low Low Low Low Low Low Low Low No risk No risk No risk No risk No risk No risk No risk

Visibility

Time 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Visibility
Very good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Very good
Monday

Time and weather

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Cloudy
Partly cloudy night
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Sunny intervals
Partly cloudy night
Partly cloudy night
Partly cloudy night
Partly cloudy night
Cloudy
Cloudy
Overcast
Overcast

Wind

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Speed
10mph Gentle breeze
10mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
10mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
12mph Gentle breeze
12mph Gentle breeze
13mph Light winds
13mph Light winds
12mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
12mph Gentle breeze
12mph Gentle breeze
12mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction from
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
ENE alongshore east northeast alongshore
ENE cross-onshore east northeast cross-onshore
ENE cross-onshore east northeast cross-onshore
ENE cross-onshore east northeast cross-onshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Gusts 23mph 23mph 23mph 23mph 23mph 23mph 23mph 23mph 23mph 23mph 23mph 23mph 23mph 23mph 22mph 23mph 22mph 23mph 23mph 25mph 26mph 25mph 23mph 22mph

Temperature

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Actual (°C)
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Feels like (°C)

Sea

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Temperature (°C)

Waves

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Height
0.5m
0.5m
0.5m
0.5m
0.5m
0.5m
0.5m
0.5m
0.5m
0.5m
0.4m
0.4m
0.5m
0.5m
0.5m
0.5m
0.5m
0.5m
0.5m
0.6m
0.6m
0.6m
0.6m
0.6m
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Time between
6s
5s
5s
5s
5s
5s
5s
5s
5s
5s
5s
5s
5s
5s
5s
5s
5s
6s
6s
6s
6s
6s
6s
6s
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction

Humidity

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Humidity
82%
83%
82%
83%
83%
83%
83%
85%
86%
86%
84%
82%
75%
75%
75%
75%
80%
83%
83%
81%
79%
76%
78%
78%

Rain and snow

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Chance
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%

UV

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
UV No risk No risk No risk No risk No risk No risk No risk No risk Low Low Low Low Low Low Low Low Low No risk No risk No risk No risk No risk No risk No risk

Visibility

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Visibility
Very good
Very good
Good
Good
Good
Good
Good
Good
Good
Good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Tuesday

Time and weather

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols
Overcast
Overcast
Overcast
Cloudy
Partly cloudy night
Partly cloudy night
Partly cloudy night
Clear night
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night

Wind

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Speed
10mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
12mph Gentle breeze
13mph Light winds
13mph Light winds
14mph Light winds
14mph Light winds
14mph Light winds
13mph Light winds
14mph Light winds
14mph Light winds
14mph Light winds
14mph Light winds
13mph Light winds
11mph Gentle breeze
10mph Gentle breeze
9mph Gentle breeze
10mph Gentle breeze
10mph Gentle breeze
10mph Gentle breeze
10mph Gentle breeze
10mph Gentle breeze
9mph Gentle breeze
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction from
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NE alongshore northeast alongshore
NNE alongshore north northeast alongshore
NNE alongshore north northeast alongshore
NNE alongshore north northeast alongshore
NNE alongshore north northeast alongshore
NNE alongshore north northeast alongshore
NNE alongshore north northeast alongshore
NNE alongshore north northeast alongshore
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Gusts 22mph 22mph 22mph 23mph 24mph 27mph 27mph 27mph 27mph 26mph 25mph 25mph 25mph 24mph 22mph 22mph 21mph 20mph 20mph 21mph 21mph 20mph 20mph 19mph

Temperature

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Actual (°C)
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Feels like (°C)
-1°
-1°
-1°
-1°
-2°
-2°
-2°
-2°

Sea

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Temperature (°C)

Waves

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Height
0.6m
0.6m
0.6m
0.6m
0.6m
0.6m
0.7m
0.7m
0.8m
0.7m
0.7m
0.7m
0.6m
0.8m
0.8m
0.8m
0.7m
0.7m
0.7m
0.6m
0.6m
0.6m
0.6m
0.6m
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Time between
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
6s
7s
7s
7s
6s
6s
6s
6s
6s
6s
6s
6s
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction

Humidity

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Humidity
81%
83%
86%
86%
87%
85%
84%
83%
82%
79%
74%
67%
64%
61%
61%
65%
73%
78%
83%
84%
85%
86%
86%
87%

Rain and snow

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Chance
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%

UV

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
UV No risk No risk No risk No risk No risk No risk No risk No risk Low Low Low Low Low Low Low Low Low No risk No risk No risk No risk No risk No risk No risk

Visibility

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Visibility
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Excellent
Excellent
Very good
Very good
Very good
Very good
Good
Good
Good
Good
Good
Wednesday

Time and weather

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Sunny day
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Clear night
Partly cloudy night

Wind

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Speed
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
8mph Gentle breeze
8mph Gentle breeze
7mph Gentle breeze
7mph Gentle breeze
7mph Gentle breeze
6mph Gentle breeze
6mph Gentle breeze
6mph Gentle breeze
5mph Gentle breeze
5mph Gentle breeze
5mph Gentle breeze
5mph Gentle breeze
5mph Gentle breeze
5mph Gentle breeze
5mph Gentle breeze
5mph Gentle breeze
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction from
NNE alongshore north northeast alongshore
NNE alongshore north northeast alongshore
NNE alongshore north northeast alongshore
NNE cross-offshore north northeast cross-offshore
N cross-offshore north cross-offshore
N cross-offshore north cross-offshore
N cross-offshore north cross-offshore
N cross-offshore north cross-offshore
N cross-offshore north cross-offshore
N cross-offshore north cross-offshore
N cross-offshore north cross-offshore
N cross-offshore north cross-offshore
N cross-offshore north cross-offshore
N cross-offshore north cross-offshore
NNW cross-offshore north northwest cross-offshore
NNW cross-offshore north northwest cross-offshore
NNW cross-offshore north northwest cross-offshore
NNW offshore north northwest offshore
NNW offshore north northwest offshore
NNW offshore north northwest offshore
NNW offshore north northwest offshore
NNW offshore north northwest offshore
NW offshore northwest offshore
NW offshore northwest offshore
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Gusts 18mph 18mph 18mph 17mph 17mph 15mph 15mph 15mph 14mph 14mph 13mph 12mph 11mph 11mph 10mph 9mph 9mph 10mph 10mph 10mph 11mph 11mph 11mph 11mph

Temperature

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Actual (°C)
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Feels like (°C)
-3°
-3°
-3°
-3°
-3°
-3°
-3°
-3°
-3°
-3°
-1°
-1°
-1°
-1°
-1°
-1°
-1°
-1°

Sea

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Temperature (°C)

Waves

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Height
0.6m
0.5m
0.5m
0.5m
0.5m
0.4m
0.4m
0.4m
0.3m
0.3m
0.3m
0.2m
0.2m
0.2m
0.2m
0.2m
0.2m
0.2m
0.1m
0.1m
0.1m
0.1m
0.1m
0.1m
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Time between
6s
6s
6s
6s
6s
5s
5s
5s
5s
5s
5s
5s
4s
4s
4s
4s
7s
7s
7s
10s
10s
10s
10s
10s
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction

Humidity

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Humidity
87%
88%
88%
87%
87%
87%
87%
87%
87%
86%
79%
75%
70%
66%
66%
75%
84%
85%
85%
85%
86%
86%
85%
85%

Rain and snow

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Chance
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%

UV

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
UV No risk No risk No risk No risk No risk No risk No risk No risk Low Low Low Low Low Low Low Low Low No risk No risk No risk No risk No risk No risk No risk

Visibility

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Visibility
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Good
Very good
Very good
Very good
Good
Good
Good
Good
Good
Good
Good
Good
Thursday

Time and weather

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Weather symbols
Partly cloudy night
Partly cloudy night
Partly cloudy night
Partly cloudy night
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Partly cloudy night

Wind

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Speed
5mph Gentle breeze
5mph Gentle breeze
5mph Gentle breeze
6mph Gentle breeze
6mph Gentle breeze
7mph Gentle breeze
8mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
10mph Gentle breeze
11mph Gentle breeze
12mph Gentle breeze
14mph Light winds
14mph Light winds
14mph Light winds
14mph Light winds
13mph Light winds
12mph Gentle breeze
12mph Gentle breeze
11mph Gentle breeze
11mph Gentle breeze
10mph Gentle breeze
10mph Gentle breeze
10mph Gentle breeze
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction from
NW offshore northwest offshore
NW offshore northwest offshore
NW offshore northwest offshore
NW offshore northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
W cross-offshore west cross-offshore
W cross-offshore west cross-offshore
W cross-offshore west cross-offshore
W cross-offshore west cross-offshore
WNW cross-offshore west northwest cross-offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
WNW offshore west northwest offshore
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Gusts 11mph 11mph 11mph 12mph 15mph 16mph 19mph 20mph 21mph 21mph 23mph 26mph 27mph 27mph 25mph 26mph 26mph 28mph 26mph 26mph 24mph 23mph 23mph 23mph

Temperature

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Actual (°C)
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Feels like (°C)
-1°
-1°

Sea

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Temperature (°C)

Waves

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Height
0.1m
0.1m
0.1m
0.1m
0.1m
0.1m
0.1m
0.1m
0.1m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
0.3m
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Time between
10s
9s
9s
8s
10s
10s
10s
10s
10s
2s
2s
2s
3s
3s
3s
3s
3s
3s
3s
3s
3s
3s
3s
3s
Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Direction

Humidity

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Humidity
85%
84%
85%
84%
84%
83%
80%
80%
82%
80%
78%
77%
76%
75%
76%
78%
81%
83%
85%
87%
88%
89%
89%
87%

Rain and snow

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Chance
<5%
<5%
<5%
<5%
<5%
<5%
10%
10%
10%
10%
10%
10%
10%
20%
20%
20%
20%
30%
30%
30%
30%
20%
30%
20%

UV

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
UV No risk No risk No risk No risk No risk No risk No risk No risk Low Low Low Low Low Low Low Low Low No risk No risk No risk No risk No risk No risk No risk

Visibility

Time 12am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm
Visibility
Good
Good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Friday

Time and weather

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Weather symbols
Partly cloudy night
Partly cloudy night
Cloudy
Sunny intervals
Sunny intervals
Partly cloudy night
Partly cloudy night
Partly cloudy night

Wind

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Speed
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
12mph Gentle breeze
11mph Gentle breeze
10mph Gentle breeze
10mph Gentle breeze
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Direction from
WNW offshore west northwest offshore
WNW offshore west northwest offshore
NW offshore northwest offshore
NW offshore northwest offshore
NW offshore northwest offshore
NW offshore northwest offshore
NW offshore northwest offshore
NW offshore northwest offshore
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Gusts 19mph 18mph 16mph 17mph 18mph 14mph 12mph 12mph

Temperature

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Actual (°C)
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Feels like (°C)

Sea

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Temperature (°C)

Waves

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Height
0.3m
0.3m
0.2m
0.2m
0.3m
0.2m
0.3m
0.3m
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Time between
3s
3s
3s
4s
6s
4s
4s
4s
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Direction

Humidity

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Humidity
87%
88%
87%
86%
77%
76%
84%
84%

Rain and snow

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Chance
20%
10%
20%
20%
20%
10%
10%
10%

UV

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
UV No risk No risk No risk Low Low Low No risk No risk

Visibility

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Visibility
Very good
Good
Very good
Very good
Very good
Very good
Very good
Very good
Saturday

Time and weather

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Weather symbols
Partly cloudy night
Partly cloudy night
Partly cloudy night
Sunny intervals
Sunny intervals
Partly cloudy night
Partly cloudy night
Partly cloudy night

Wind

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Speed
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
9mph Gentle breeze
11mph Gentle breeze
10mph Gentle breeze
8mph Gentle breeze
8mph Gentle breeze
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Direction from
NW offshore northwest offshore
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Gusts 14mph 14mph 13mph 13mph 15mph 12mph 11mph 11mph

Temperature

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Actual (°C)
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Feels like (°C)
-1°
-1°
-2°
-1°
-1°
-1°

Sea

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Temperature (°C)

Waves

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Height
0.3m
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Time between
3s
Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Direction

Humidity

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Humidity
87%
84%
85%
84%
71%
71%
84%
87%

Rain and snow

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Chance
10%
10%
10%
10%
10%
10%
10%
10%

UV

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
UV No risk No risk No risk Low Low Low No risk No risk

Visibility

Time 12am 3am 6am 9am 12pm 3pm 6pm 9pm
Visibility
Very good
Very good
Very good
Very good
Very good
Very good
Very good
Very good

Portland Harbour - Castle Cove (Beach) weather map

Loading map...
Forecast for 8am Sunday

Beach safety tips

In an emergency call 999 and ask for the coastguard.

Beach safety

Water safety from the RNLI

UK video forecast

WARNING
Flood warnings icon
Flood warnings in force for England
Flood warnings in force for England

South West England weather forecast

Headline:

Less windy today bur rather cloudy for most.

Today:

Generally dry and cloudy with fleeting brighter moments. Spots of drizzle possible in Devon and Cornwall. Not as windy as on Saturday but the easterly breeze persisting and feeling chilly Maximum temperature 7 °C.

Tonight:

Fairly cloudy in many places this evening but prolonged clear periods developing overnight. Patchy mist and freezing fog developing later and turning cold with a frost developing in places. Minimum temperature -1 °C.

Monday:

Monday will probably be a brighter day overall with sunny periods once any early fog or low cloud has cleared. Fairly light winds but chilly nonetheless after a cold start. Maximum temperature 6 °C.

Outlook for Tuesday to Thursday:

Remaining generally dry to end 2025 with sunny periods at times. Widespread overnight frosts and patchy freezing fog. Perhaps breezier with isolated showers on New Year's Day. Feeling rather cold.

Updated:

UK long range weather forecast