Castlewellan (County Down) weather

Forecast days

Overcast changing to heavy rain in the afternoon.
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7 day forecast for Castlewellan

Today (18 October 2025)
Time
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Overcast Overcast Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain
Chance of precipitation
10%
40%
80%
80%
90%
90%
90%
≥95%
≥95%
≥95%
Temperature
13°
13°
12°
12°
12°
12°
11°
11°
11°
11°
Feels like temperature (°C)
10°
10°
Wind direction and speed
SSE
17
SE
17
SE
17
SE
18
SE
18
SE
19
SE
20
SE
20
SE
21
SE
21
Wind gust (mph)
35
35
35
35
36
37
38
40
40
41
Visibility
VG
VG
VG
G
M
M
M
M
M
M
Humidity
85%
85%
86%
87%
90%
91%
92%
93%
94%
95%
UV 1 1 1 1 1 - - - - -
Sunday (19 October 2025)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Sunny intervals Sunny intervals Sunny day Sunny day Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
90%
70%
50%
20%
<5%
<5%
10%
10%
10%
<5%
20%
30%
Temperature (°C)
11°
11°
11°
12°
12°
12°
12°
13°
13°
13°
13°
13°
13°
14°
14°
14°
14°
13°
12°
12°
12°
12°
12°
12°
Feels like temperature (°C)
10°
10°
11°
11°
12°
12°
12°
12°
11°
11°
10°
10°
10°
10°
Wind direction and speed (mph)
SE
22
SE
22
SE
23
SE
23
SE
22
SE
22
SE
21
SE
21
SE
20
SE
19
SE
19
SSE
17
SSE
15
S
13
SSW
11
SW
10
SW
9
SSW
7
SSE
7
SE
7
SSE
7
SSE
8
SSE
7
SSE
7
Wind gust (mph)
42
42
43
43
43
43
42
41
40
39
36
33
24
21
19
15
15
13
14
14
15
15
15
16
Visibility (description)
M
M
M
M
P
M
M
M
M
M
P
P
M
M
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
95%
95%
95%
95%
95%
95%
95%
95%
96%
96%
96%
97%
96%
96%
95%
88%
85%
87%
90%
91%
91%
91%
91%
92%
UV - - - - - - - - 1 1 1 1 1 1 1 1 1 1 1 - - - - -
Monday (20 October 2025)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Partly cloudy night Light shower night Heavy shower night Heavy shower night Heavy shower night Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower day Light shower night Light shower night Partly cloudy night Partly cloudy night Cloudy Cloudy
Chance of precipitation
40%
60%
80%
90%
90%
90%
90%
90%
90%
90%
90%
90%
80%
80%
80%
80%
90%
70%
70%
60%
50%
40%
30%
40%
Temperature (°C)
12°
12°
12°
12°
12°
12°
12°
12°
11°
11°
12°
12°
12°
12°
12°
12°
12°
12°
12°
11°
11°
11°
11°
10°
Feels like temperature (°C)
10°
10°
10°
10°
10°
10°
10°
10°
10°
10°
10°
10°
11°
11°
11°
11°
11°
10°
10°
10°
Wind direction and speed (mph)
SE
8
SE
8
SE
8
ESE
8
ESE
8
ESE
8
ESE
9
E
9
E
9
E
9
E
8
E
8
ENE
7
NE
7
NNE
7
NNW
7
NNW
7
NW
8
WNW
8
WNW
8
WNW
8
WNW
8
W
8
W
9
Wind gust (mph)
17
18
17
18
18
18
17
17
15
13
14
14
12
11
13
13
14
14
14
13
15
15
15
16
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
G
G
G
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
92%
92%
92%
94%
94%
96%
96%
97%
96%
96%
96%
95%
93%
93%
91%
90%
90%
92%
93%
95%
95%
95%
95%
94%
UV - - - - - - - - 1 1 1 1 1 1 1 1 1 1 1 - - - - -
Tuesday (21 October 2025)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Overcast Overcast Light shower day Overcast Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
40%
40%
40%
40%
40%
40%
30%
40%
50%
50%
50%
40%
30%
40%
50%
40%
30%
20%
10%
10%
10%
10%
10%
<5%
Temperature (°C)
10°
10°
10°
10°
10°
10°
10°
10°
10°
10°
10°
11°
11°
11°
11°
11°
11°
10°
10°
Feels like temperature (°C)
Wind direction and speed (mph)
W
9
W
10
W
11
W
11
W
11
W
11
W
11
W
11
W
11
W
12
W
14
W
15
WNW
16
WNW
16
WNW
16
WNW
16
WNW
16
WNW
15
W
14
W
12
W
11
W
11
W
10
W
10
Wind gust (mph)
16
19
19
18
18
17
17
19
21
21
22
24
26
28
30
29
26
24
20
18
17
18
18
18
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
E
E
E
E
E
E
E
E
E
E
E
E
E
Humidity
95%
96%
95%
95%
95%
95%
95%
94%
94%
93%
93%
90%
88%
84%
80%
78%
76%
77%
82%
84%
84%
86%
87%
89%
UV - - - - - - - - 1 1 1 1 2 2 1 1 1 1 1 - - - - -
Wednesday (22 October 2025)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Clear night Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Light rain Light rain Light rain Light rain Light rain Light rain
Chance of precipitation
<5%
<5%
<5%
<5%
10%
10%
10%
10%
10%
20%
20%
30%
30%
40%
40%
50%
50%
50%
60%
60%
60%
60%
60%
60%
Temperature (°C)
10°
10°
10°
10°
10°
10°
10°
Feels like temperature (°C)
Wind direction and speed (mph)
W
10
W
9
W
9
W
8
W
7
W
7
W
7
W
6
W
6
W
6
WSW
7
WSW
8
SW
10
SSW
11
SW
11
S
11
E
12
E
12
ENE
11
NNW
11
WNW
11
WNW
12
NNW
13
NW
13
Wind gust (mph)
17
15
15
15
15
14
13
12
11
12
13
13
15
15
17
15
14
14
15
16
17
15
15
17
Visibility (description)
E
E
E
E
E
E
VG
VG
VG
VG
VG
VG
E
E
VG
VG
VG
VG
VG
VG
VG
VG
G
G
Humidity
89%
90%
91%
91%
91%
90%
91%
90%
90%
88%
85%
82%
79%
77%
76%
77%
78%
83%
89%
91%
91%
92%
92%
92%
UV - - - - - - - - 1 1 1 1 2 1 1 1 1 1 1 - - - - -
Thursday (23 October 2025)
Time
00:00
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Light rain Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Partly cloudy night Cloudy
Chance of precipitation
50%
40%
40%
40%
50%
50%
40%
30%
30%
Temperature (°C)
10°
10°
Feels like temperature (°C)
Wind direction and speed (mph)
NW
13
NW
13
WNW
14
WNW
14
WNW
15
NW
18
NW
17
WNW
16
NW
16
Wind gust (mph)
17
20
20
20
24
26
22
20
18
Visibility (description)
G
G
G
G
VG
G
VG
VG
VG
Humidity
92%
92%
91%
91%
89%
83%
80%
85%
87%
UV - - - - 1 2 1 - -
Friday (24 October 2025)
Time
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Cloudy Cloudy Cloudy Cloudy Cloudy Sunny intervals Partly cloudy night Cloudy
Chance of precipitation
40%
40%
40%
40%
40%
30%
30%
20%
Temperature (°C)
Feels like temperature (°C)
Wind direction and speed (mph)
NW
16
NW
15
NW
14
NW
15
NNW
19
NW
18
NW
14
NW
13
Wind gust (mph)
18
18
20
26
28
24
20
21
Visibility (description)
VG
G
VG
VG
VG
VG
VG
VG
Humidity
86%
87%
86%
84%
76%
74%
82%
81%
UV - - - 1 2 1 - -

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Northern Ireland weather forecast

Headline:

Dry and cloudy most of the day, some evening rain.

Today:

Most of the day will be dry and cloudy, some occasional brightness in the morning. Outbreaks of rain will spread northeast through the late afternoon along with strengthening southeasterly winds. Maximum temperature 13 °C.

Tonight:

Cloudy with outbreaks of rain through the evening and overnight. Rain heavy and persistent at times, particularly over counties Down, Armagh and southern Antrim. Strong southeast winds with coastal gales. Minimum temperature 11 °C.

Sunday:

Cloud, rain, and strong southeast winds at first, rain heavy at times and most persistent in the southeast. Clearing by the afternoon, then sunny spells and a few showers. Maximum temperature 14 °C.

Outlook for Monday to Wednesday:

Rather cloudy at times on Monday and Tuesday with scattered showers, heavy at times on Monday. Drier and brighter at first Wednesday before wind and rain likely from the afternoon.

Updated:

UK long range weather forecast

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