Glasfynydd (Usk Reservoir) (Carmarthenshire) weather

Find a forecast

Next hour

Sunny intervals

Feels like 2°
Rain 20%
Max gust 16mph from WSW Max gust 16mph from the west southwest

Thursday

Sunny intervals

Feels like 3°
Rain 30% at 2pm
Max gust 17mph

Friday

Heavy rain

Feels like 6°
Light showers 60% at 6am
Max gust 49mph

Saturday

Light showers

Feels like 7°
Heavy rain 80% at 6am
Max gust 31mph

Sunday

Cloudy

Feels like 7°
Light rain 70% at 6am
Max gust 26mph

Monday

Light showers

Feels like 7°
Light showers 60% at 6am
Max gust 30mph

Tuesday

Light rain

Feels like 8°
Light rain 70% at 6am
Max gust 40mph

Wednesday

Sunny intervals

Feels like 6°
Rain 40% at 6am
Max gust 30mph

Forecast days

Today Today

Maximum daytime temperature: 6° Celsius; Minimum nighttime temperature: 2° Celsius;
Fri Friday

Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 7° Celsius;
Sat Saturday

Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 8° Celsius;
Sun Sunday

Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 7° Celsius;
Mon Monday

Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 9° Celsius;
Tue Tuesday

Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 8° Celsius;
Wed Wednesday

Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 7° Celsius;

7 day forecast for Glasfynydd (Usk Reservoir)

Time	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm
Weather symbols and temperature	4°	5°	5°	5°	5°	4°	4°	3°	3°	3°	2°	3°	2°
Chance of precipitation	20%	20%	30%	30%	20%	20%	10%	10%	20%	10%	10%	10%	10%
Wind speed and direction	8mph	8mph	8mph	8mph	7mph	6mph	6mph	6mph	6mph	6mph	6mph	7mph	7mph

Next day

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	3°	3°	3°	3°	4°	4°	4°	4°	4°	5°	5°	5°	6°	5°	5°	6°	6°	7°	7°	8°	9°	9°	8°	8°
Chance of precipitation	<5%	10%	20%	30%	40%	40%	60%	40%	20%	10%	10%	40%	90%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	90%	90%	90%	90%
Wind speed and direction	7mph	7mph	7mph	7mph	7mph	7mph	8mph	9mph	10mph	10mph	11mph	13mph	16mph	20mph	23mph	26mph	26mph	23mph	18mph	15mph	14mph	14mph	14mph	14mph

Next day

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	8°	8°	8°	8°	8°	8°	8°	8°	8°	8°	9°	9°	9°	10°	10°	9°	9°	9°	9°	9°	9°	9°	8°	8°
Chance of precipitation	≥95%	≥95%	≥95%	≥95%	90%	90%	80%	80%	80%	80%	70%	70%	80%	80%	80%	80%	80%	80%	60%	50%	40%	30%	30%	20%
Wind speed and direction	14mph	14mph	14mph	15mph	15mph	15mph	14mph	13mph	12mph	12mph	13mph	13mph	14mph	14mph	14mph	14mph	14mph	14mph	14mph	14mph	14mph	13mph	12mph	11mph

Next day

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	8°	8°	8°	8°	8°	9°	9°	9°	9°	9°	10°	10°	10°	10°	10°	10°	9°	9°	9°	8°	8°	8°	8°	8°
Chance of precipitation	30%	40%	50%	70%	80%	90%	70%	50%	50%	40%	30%	30%	20%	30%	20%	30%	30%	30%	30%	20%	20%	30%	40%	40%
Wind speed and direction	10mph	9mph	8mph	8mph	10mph	11mph	12mph	13mph	14mph	14mph	14mph	15mph	15mph	14mph	13mph	12mph	10mph	9mph	9mph	9mph	9mph	8mph	9mph	9mph

Next day

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	8°	8°	8°	8°	8°	8°	8°	8°	8°	8°	9°	9°	10°	10°	10°	10°	10°	9°	9°	9°	10°	10°	10°	10°
Chance of precipitation	40%	40%	50%	60%	60%	60%	60%	40%	40%	40%	20%	20%	20%	20%	20%	10%	20%	20%	30%	40%	50%	50%	60%	80%
Wind speed and direction	10mph	11mph	12mph	13mph	13mph	14mph	14mph	13mph	13mph	13mph	13mph	13mph	13mph	13mph	13mph	12mph	11mph	11mph	11mph	11mph	12mph	13mph	14mph	16mph

Next day

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Weather symbols and temperature	10°	11°	11°	11°	11°	11°	10°	9°
Chance of precipitation	90%	80%	70%	60%	50%	40%	40%	40%
Wind speed and direction	17mph	18mph	18mph	17mph	16mph	15mph	14mph	14mph

Next day

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Weather symbols and temperature	9°	9°	9°	8°	9°	9°	8°	9°
Chance of precipitation	40%	30%	40%	40%	30%	20%	40%	60%
Wind speed and direction	13mph	13mph	12mph	11mph	13mph	13mph	12mph	13mph

Next day

Select units Temperature units

Wind

Daily highest gust

17mph

Feels like

Daily high

Daily low

Next rain

Chance of rain

30%

Rain 30% at 2pm

Humidity

Daily high

92%

Daily low

86%

Daily highest level

Low

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

Visibility

Daily high

50km

Daily low

35km

Sunrise and sunset

08:05 16:05

Complete sun and moon data for Thursday - U.S. Naval Observatory

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

Today

Time and weather

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

Wind

Time	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm
Speed	8mph Gentle breeze	8mph Gentle breeze	8mph Gentle breeze	8mph Gentle breeze	7mph Gentle breeze	6mph Gentle breeze	6mph Gentle breeze	6mph Gentle breeze	6mph Gentle breeze	6mph Gentle breeze	6mph Gentle breeze	7mph Gentle breeze	7mph Gentle breeze

Time	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm
Direction from	WSW west southwest	WSW west southwest	W west	W west	W west	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	SW southwest	SW southwest	SW southwest	SW southwest

Time	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm
Gusts	16mph	17mph	17mph	17mph	14mph	12mph	12mph	12mph	12mph	12mph	12mph	12mph	12mph

Temperature

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

Time	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm
Feels like (°C)	2°	2°	3°	3°	2°	2°	1°	1°	0°	0°	-1°	0°	-1°

Humidity

Time	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm
Humidity	92%	89%	87%	86%	88%	91%	92%	92%	91%	90%	91%	88%	88%

Rain and snow

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

UV

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

Visibility

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

Select units Temperature units

Wind

Daily highest gust

49mph

Feels like

Daily high

Daily low

Next rain

Chance of rain

40%

Light showers 60% at 6am

Humidity

Daily high

95%

Daily low

85%

Daily highest level

Low

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

Visibility

Daily high

55km

Daily low

3.3km

Sunrise and sunset

08:06 16:05

Complete sun and moon data for Friday - U.S. Naval Observatory

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

Friday

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

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	7mph Gentle breeze	7mph Gentle breeze	7mph Gentle breeze	7mph Gentle breeze	7mph Gentle breeze	7mph Gentle breeze	8mph Gentle breeze	9mph Gentle breeze	10mph Gentle breeze	10mph Gentle breeze	11mph Gentle breeze	13mph Light winds	16mph Light winds	20mph Strong winds	23mph Strong winds	26mph Strong winds	26mph Strong winds	23mph Strong winds	18mph Light winds	15mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds

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	SW southwest	SW southwest	SW southwest	SW southwest	SSW south southwest	SSW south southwest	SSW south southwest	S south	S south	SSE south southeast	SSE south southeast	SSE south southeast	SSE south southeast	SSE south southeast	SSE south southeast	SSE south southeast	SSE south southeast	SSE south southeast	SSE south southeast	S south	SSW south southwest	SW southwest	SSW south southwest	SSW south southwest

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	12mph	12mph	12mph	12mph	13mph	15mph	18mph	21mph	25mph	28mph	33mph	38mph	42mph	47mph	49mph	49mph	45mph	36mph	30mph	29mph	30mph	30mph	29mph

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)	3°	3°	3°	3°	4°	4°	4°	4°	4°	5°	5°	5°	6°	5°	5°	6°	6°	7°	7°	8°	9°	9°	8°	8°

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)	0°	0°	0°	0°	1°	1°	1°	1°	1°	1°	1°	2°	1°	0°	0°	0°	1°	2°	3°	5°	6°	5°	5°	4°

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%	86%	87%	88%	91%	92%	93%	94%	93%	91%	86%	85%	85%	91%	93%	93%	94%	93%	95%	95%	94%	93%	93%	93%

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%	10%	20%	30%	40%	40%	60%	40%	20%	10%	10%	40%	90%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	90%	90%	90%	90%

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	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Very good	Very good	Very good	Very good	Very good	Very good	Very good	Moderate	Poor	Moderate	Poor	Poor	Moderate	Moderate	Good	Very good	Very good	Excellent

Select units Temperature units

Wind

Daily highest gust

31mph

Feels like

Daily high

Daily low

Next rain

Chance of rain

≥95%

Heavy rain 80% at 6am

Humidity

Daily high

97%

Daily low

93%

Daily highest level

Low

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

Visibility

Daily high

55km

Daily low

12km

Sunrise and sunset

08:07 16:04

Complete sun and moon data for Saturday - U.S. Naval Observatory

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

Saturday

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

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	14mph Light winds	14mph Light winds	14mph Light winds	15mph Light winds	15mph Light winds	15mph Light winds	14mph Light winds	13mph Light winds	12mph Gentle breeze	12mph Gentle breeze	13mph Light winds	13mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds	13mph Light winds	12mph 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	SSW south southwest	SSW south southwest	SSW south southwest	SSW south southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest

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	30mph	30mph	30mph	31mph	30mph	27mph	24mph	24mph	23mph	24mph	24mph	25mph	24mph	25mph	25mph	28mph	28mph	28mph	29mph	27mph	26mph	25mph	22mph	20mph

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)	8°	8°	8°	8°	8°	8°	8°	8°	8°	8°	9°	9°	9°	10°	10°	9°	9°	9°	9°	9°	9°	9°	8°	8°

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)	4°	5°	5°	5°	5°	5°	5°	5°	5°	5°	6°	6°	6°	7°	7°	6°	6°	6°	6°	6°	5°	5°	5°	6°

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	93%	93%	93%	94%	94%	94%	95%	96%	96%	96%	96%	96%	96%	95%	96%	96%	95%	96%	97%	96%	96%	96%	96%	95%

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	≥95%	≥95%	≥95%	≥95%	90%	90%	80%	80%	80%	80%	70%	70%	80%	80%	80%	80%	80%	80%	60%	50%	40%	30%	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	Excellent	Excellent	Very good	Good	Good	Good	Very good	Very good	Very good	Very good	Very good	Very good	Very good	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent

Select units Temperature units

Wind

Daily highest gust

26mph

Feels like

Daily high

Daily low

Next rain

Chance of rain

40%

Light rain 70% at 6am

Humidity

Daily high

97%

Daily low

87%

Daily highest level

Low

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

Visibility

Daily high

55km

Daily low

6km

Sunrise and sunset

08:09 16:04

Complete sun and moon data for Sunday - U.S. Naval Observatory

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

Sunday

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

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	9mph Gentle breeze	8mph Gentle breeze	8mph Gentle breeze	10mph Gentle breeze	11mph Gentle breeze	12mph Gentle breeze	13mph Light winds	14mph Light winds	14mph Light winds	14mph Light winds	15mph Light winds	15mph Light winds	14mph Light winds	13mph Light winds	12mph Gentle breeze	10mph Gentle breeze	9mph Gentle breeze	9mph Gentle breeze	9mph Gentle breeze	9mph Gentle breeze	8mph Gentle breeze	9mph 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	SW southwest	SW southwest	SW southwest	SSW south southwest	SSW south southwest	S south	S south	SSW south southwest	SSW south southwest	SW southwest	SW southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	WSW west southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SSW south southwest	SSW south southwest

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	19mph	17mph	17mph	18mph	20mph	20mph	22mph	23mph	23mph	24mph	25mph	26mph	25mph	25mph	22mph	19mph	17mph	15mph	13mph	11mph	11mph	12mph	13mph	17mph

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)	8°	8°	8°	8°	8°	9°	9°	9°	9°	9°	10°	10°	10°	10°	10°	10°	9°	9°	9°	8°	8°	8°	8°	8°

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)	6°	6°	6°	6°	6°	6°	6°	6°	6°	6°	7°	7°	7°	7°	7°	7°	7°	7°	6°	6°	6°	6°	6°	6°

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	94%	94%	95%	94%	95%	96%	97%	96%	95%	95%	94%	92%	90%	88%	87%	88%	92%	91%	92%	93%	93%	93%	93%	93%

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	30%	40%	50%	70%	80%	90%	70%	50%	50%	40%	30%	30%	20%	30%	20%	30%	30%	30%	30%	20%	20%	30%	40%	40%

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	Excellent	Excellent	Excellent	Very good	Good	Moderate	Moderate	Moderate	Good	Good	Very good	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Very good	Very good	Very good	Very good	Very good	Very good

Select units Temperature units

Wind

Daily highest gust

30mph

Feels like

Daily high

Daily low

Next rain

Chance of rain

40%

Light showers 60% at 6am

Humidity

Daily high

94%

Daily low

89%

Daily highest level

Low

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

Visibility

Daily high

45km

Daily low

5km

Sunrise and sunset

08:10 16:04

Complete sun and moon data for Monday - U.S. Naval Observatory

Air pollution

Daily level

Low

Enjoy your usual outdoor activities.

Pollution forecast and air quality from Defra - GOV.UK

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

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	12mph Gentle breeze	13mph Light winds	13mph Light winds	14mph Light winds	14mph Light winds	13mph Light winds	13mph Light winds	13mph Light winds	13mph Light winds	13mph Light winds	13mph Light winds	13mph Light winds	13mph Light winds	12mph Gentle breeze	11mph Gentle breeze	11mph Gentle breeze	11mph Gentle breeze	11mph Gentle breeze	12mph Gentle breeze	13mph Light winds	14mph Light winds	16mph Light winds

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	SSW south southwest	SSW south southwest	SSW south southwest	SSW south southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SW southwest	SSW south southwest	SSW south southwest	S south	S south	S south	SSE south southeast	SSE south southeast

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	15mph	17mph	19mph	19mph	23mph	26mph	25mph	25mph	25mph	24mph	25mph	25mph	25mph	25mph	24mph	21mph	19mph	19mph	20mph	21mph	23mph	23mph	26mph	30mph

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)	8°	8°	8°	8°	8°	8°	8°	8°	8°	8°	9°	9°	10°	10°	10°	10°	10°	9°	9°	9°	10°	10°	10°	10°

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)	5°	5°	5°	5°	5°	5°	5°	5°	5°	5°	6°	6°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°

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	93%	93%	93%	93%	93%	93%	93%	93%	93%	92%	92%	91%	90%	89%	90%	92%	93%	93%	93%	94%	94%	94%	94%	94%

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	40%	40%	50%	60%	60%	60%	60%	40%	40%	40%	20%	20%	20%	20%	20%	10%	20%	20%	30%	40%	50%	50%	60%	80%

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	Excellent	Very good	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Excellent	Very good	Very good	Very good	Good	Good	Good	Good	Moderate	Moderate

Select units Temperature units

Wind

Daily highest gust

40mph

Feels like

Daily high

Daily low

Next rain

Chance of rain

90%

Light rain 70% at 6am

Humidity

Daily high

95%

Daily low

93%

Daily highest level

Low

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

Visibility

Daily high

12km

Daily low

3.7km

Sunrise and sunset

08:11 16:03

Complete sun and moon data for Tuesday - U.S. Naval Observatory

Air pollution

No air pollution data

Tuesday

Time and weather

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Weather symbols

Wind

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Speed	17mph Light winds	18mph Light winds	18mph Light winds	17mph Light winds	16mph Light winds	15mph Light winds	14mph Light winds	14mph Light winds

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Direction from	SSE south southeast	S south	SSW south southwest	SSW south southwest	SW southwest	SSW south southwest	SSW south southwest	SSW south southwest

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Gusts	39mph	40mph	38mph	36mph	33mph	28mph	26mph	26mph

Temperature

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Actual (°C)	10°	11°	11°	11°	11°	11°	10°	9°

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Feels like (°C)	7°	8°	8°	8°	8°	8°	7°	7°

Humidity

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Humidity	94%	95%	95%	94%	94%	93%	94%	94%

Rain and snow

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Chance	90%	80%	70%	60%	50%	40%	40%	40%

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	Moderate	Poor	Moderate	Moderate	Moderate	Good	Good	Good

Select units Temperature units

Wind

Daily highest gust

30mph

Feels like

Daily high

Daily low

Next rain

Chance of rain

40%

Rain 40% at 6am

Humidity

Daily high

94%

Daily low

91%

Daily highest level

Low

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

Visibility

Daily high

19km

Daily low

8km

Sunrise and sunset

08:12 16:03

Complete sun and moon data for Wednesday - U.S. Naval Observatory

Air pollution

No air pollution data

Wednesday

Time and weather

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Weather symbols

Wind

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Speed	13mph Light winds	13mph Light winds	12mph Gentle breeze	11mph Gentle breeze	13mph Light winds	13mph Light winds	12mph Gentle breeze	13mph Light winds

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Direction from	SSW south southwest	SW southwest	SW southwest	SW southwest	SW southwest	SSW south southwest	SSW south southwest	SSW south southwest

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Gusts	27mph	26mph	23mph	26mph	27mph	26mph	27mph	30mph

Temperature

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Actual (°C)	9°	9°	9°	8°	9°	9°	8°	9°

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Feels like (°C)	6°	6°	6°	5°	6°	6°	6°	6°

Humidity

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Humidity	94%	94%	94%	94%	93%	91%	93%	94%

Rain and snow

Time	12am	3am	6am	9am	12pm	3pm	6pm	9pm
Chance	40%	30%	40%	40%	30%	20%	40%	60%

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	Moderate	Good	Good	Good	Good	Good	Good	Moderate

Glasfynydd (Usk Reservoir) weather map

Loading map...

Forecast for 11am Thursday

Updated: 10:28am on 4 December 2025

Forecast explained

UK video forecast

WARNING

Flood warnings in force for Wales

Natural Resources Wales

Wales weather forecast

Headline:

Heavy rain clearing. Drier into the afternoon.

Today:

Heavy rain clearing eastwards this morning. Turning drier behind with some glimmers of sunshine into the afternoon. Winds easing and feeling colder than previous days. Maximum temperature 9 °C.

Tonight:

Remaining largely dry this evening with clear spells to start. Becoming cloudier again overnight with showery rain and a brisker breeze. Minimum temperature -1 °C.

Friday:

Often cloudy to start with some patchy rain. A brief drier interlude during the morning before a band of heavy rain sweeps eastwards. Windy with the risk of coastal gales. Maximum temperature 11 °C.

Outlook for Saturday to Monday:

Remaining changeable this weekend and into next with showers on Saturday. Unsettled again on Sunday with longer spells of rain, then somewhat drier on Monday. Milder but often breezy.

Updated: 04:00 (UTC) on Thu 4 Dec 2025

UK long range weather forecast

A continuation of the unsettled conditions seen recently is expected, with further showers or longer spells of rain and some strong winds affecting all parts. This period will likely start largely fine, bar a few showers, but another area of rain and strong winds is expected to move northeast across all parts early next week, followed by sunny spells and some showers. However, further bands or areas of rain are likely to move east or northeast across all parts over the following several days, some of these accompanied by potentially very strong winds. Temperatures will generally be near or a little above average, but feeling cool in the wind and rain. Little in the way of frost, fog and snow is expected in this unsettled spell.

Updated: 14:00 (UTC) on Wed 3 Dec 2025

This period is likely to be changeable, with further spells of rain or showers and some strong winds at times, especially in the west. Hill snow is also a possibility, mainly in the north. However, there is a greater chance of spells of high pressure during this period, bringing more in the way of dry weather compared to the unsettled conditions we are likely to see through the first couple of weeks of December. This will increase the chances of overnight fog and frost. Overall, near or slightly above average temperatures are most likely, though some colder spells are also possible, especially should any prolonged settled spells develop.

Updated: 15:00 (UTC) on Wed 3 Dec 2025

Very Poor	Less than 1km
Poor	1.1km to 4km
Moderate	4.1km to 10km
Good	10.1km to 20km
Very Good	20.1km to 40km
Excellent	Greater than 40km

Very Poor	Less than 1km
Poor	1.1km to 4km
Moderate	4.1km to 10km
Good	10.1km to 20km
Very Good	20.1km to 40km
Excellent	Greater than 40km

Very Poor	Less than 1km
Poor	1.1km to 4km
Moderate	4.1km to 10km
Good	10.1km to 20km
Very Good	20.1km to 40km
Excellent	Greater than 40km

Very Poor	Less than 1km
Poor	1.1km to 4km
Moderate	4.1km to 10km
Good	10.1km to 20km
Very Good	20.1km to 40km
Excellent	Greater than 40km

Very Poor	Less than 1km
Poor	1.1km to 4km
Moderate	4.1km to 10km
Good	10.1km to 20km
Very Good	20.1km to 40km
Excellent	Greater than 40km

Glasfynydd (Usk Reservoir) (Carmarthenshire) weather

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7 day forecast for Glasfynydd (Usk Reservoir)

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