Corn Du (Powys) weather

Forecast days

Heavy rain.
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Sunset iconSunset:
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7 day forecast for Corn Du

Today (16 September 2025)
Time
23:00
Weather symbols Heavy rain
Chance of precipitation
≥95%
Temperature
Feels like temperature (°C)
Wind direction and speed
SSW
18
Wind gust (mph)
24
Visibility
VP
Humidity
98%
UV -
Wednesday (17 September 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 Heavy rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain
Chance of precipitation
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
90%
90%
90%
80%
70%
70%
70%
70%
70%
80%
80%
80%
Temperature (°C)
10°
11°
11°
12°
12°
12°
12°
13°
13°
12°
12°
12°
12°
12°
12°
12°
12°
Feels like temperature (°C)
Wind direction and speed (mph)
SSW
22
SSW
27
SSW
31
SSW
34
SSW
38
SSW
43
SSW
43
SSW
43
SW
39
SW
39
SW
35
SW
34
SW
33
SW
33
SW
32
SW
31
SW
33
SW
33
SW
32
SW
32
SW
31
SW
32
SW
32
SW
33
Wind gust (mph)
30
34
37
42
47
48
48
47
43
43
39
38
37
36
36
37
37
36
35
35
35
35
36
37
Visibility (description)
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
Humidity
98%
99%
99%
99%
99%
99%
99%
99%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
99%
99%
100%
100%
100%
100%
UV - - - - - - 1 1 1 1 1 1 1 2 2 2 1 1 1 1 - - - -
Thursday (18 September 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 Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog
Chance of precipitation
80%
90%
90%
90%
90%
90%
80%
70%
70%
60%
40%
30%
20%
10%
20%
20%
20%
10%
10%
20%
20%
20%
20%
10%
Temperature (°C)
12°
12°
12°
12°
12°
12°
12°
12°
12°
12°
12°
12°
12°
13°
13°
13°
13°
13°
12°
12°
12°
12°
12°
12°
Feels like temperature (°C)
Wind direction and speed (mph)
SW
33
SW
33
SW
33
SW
34
SW
36
SW
36
SW
37
SW
37
SW
36
SW
36
SW
36
SW
38
SW
39
SW
39
SW
39
SW
39
SW
39
SW
38
SW
37
SW
37
SW
36
SSW
35
SSW
34
SSW
35
Wind gust (mph)
37
37
38
39
40
40
40
40
40
40
41
43
43
43
43
43
43
42
41
40
39
38
38
38
Visibility (description)
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
Humidity
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
99%
98%
96%
95%
96%
96%
96%
96%
97%
97%
98%
98%
98%
98%
UV - - - - - - 1 1 1 1 1 2 2 2 2 1 1 1 1 1 - - - -
Friday (19 September 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 Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Light rain Light rain
Chance of precipitation
20%
20%
20%
20%
20%
30%
30%
30%
40%
40%
40%
40%
50%
40%
40%
40%
40%
40%
50%
50%
40%
40%
50%
50%
Temperature (°C)
11°
11°
11°
11°
11°
11°
11°
11°
10°
11°
11°
11°
12°
12°
13°
13°
13°
13°
12°
12°
11°
11°
11°
11°
Feels like temperature (°C)
Wind direction and speed (mph)
SSW
35
SSW
35
SSW
34
SSW
33
SSW
32
SSW
30
SSW
29
SSW
26
SSW
25
SSW
24
SSW
25
SSW
26
SSW
27
SSW
27
SSW
27
SSW
27
SW
26
SSW
25
SW
23
SW
21
SW
19
SW
17
SW
17
SW
16
Wind gust (mph)
38
38
37
36
35
33
32
29
27
27
28
29
30
30
30
29
29
28
26
23
20
19
18
17
Visibility (description)
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
Humidity
98%
98%
98%
98%
98%
98%
99%
99%
100%
99%
99%
99%
99%
97%
95%
95%
96%
95%
98%
98%
97%
98%
98%
98%
UV - - - - - - 1 1 1 1 1 2 2 2 2 2 1 1 1 1 - - - -
Saturday (20 September 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 Fog Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Fog Cloudy Cloudy Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
50%
50%
50%
60%
60%
60%
50%
50%
50%
50%
50%
50%
60%
70%
70%
60%
50%
50%
50%
40%
40%
30%
30%
30%
Temperature (°C)
10°
10°
10°
10°
10°
10°
10°
10°
10°
Feels like temperature (°C)
Wind direction and speed (mph)
SW
14
SW
15
SW
14
SW
14
SW
14
WSW
14
WSW
15
W
15
W
15
W
16
W
17
WSW
18
W
19
WSW
20
W
21
W
21
W
21
W
21
WNW
19
WNW
18
WNW
17
NW
17
NW
18
NW
17
Wind gust (mph)
16
16
16
15
16
16
16
16
18
19
20
21
25
28
27
27
26
23
21
20
18
19
19
19
Visibility (description)
VP
VP
M
P
VP
P
VP
P
G
P
VP
VG
VG
E
E
E
E
E
E
E
E
E
E
E
Humidity
97%
97%
97%
97%
97%
98%
98%
97%
96%
96%
96%
93%
89%
87%
84%
80%
76%
79%
85%
88%
92%
93%
92%
94%
UV - - - - - - 1 1 1 1 2 2 2 3 3 2 1 1 1 1 - - - -
Sunday (21 September 2025)
Time
00:00
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Sunny intervals Partly cloudy night Cloudy
Chance of precipitation
30%
40%
40%
40%
40%
30%
20%
20%
10%
Temperature (°C)
Feels like temperature (°C)
-1°
Wind direction and speed (mph)
NNW
17
NNW
17
NNW
17
N
18
N
20
N
23
N
27
N
21
NNE
17
Wind gust (mph)
20
22
21
31
34
33
31
24
24
Visibility (description)
VG
VG
VG
G
VG
VG
VG
VG
VG
Humidity
93%
93%
94%
93%
85%
75%
66%
74%
80%
UV - - - 1 2 3 2 1 -
Monday (22 September 2025)
Time
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Cloudy Partly cloudy night Sunny intervals Sunny intervals Cloudy Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
10%
10%
10%
10%
10%
10%
10%
<5%
Temperature (°C)
Feels like temperature (°C)
-2°
-3°
-3°
-1°
Wind direction and speed (mph)
NNE
17
NNE
15
NNE
15
NE
18
NE
21
NE
21
NE
15
NE
15
Wind gust (mph)
21
18
22
28
27
26
17
16
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
83%
84%
85%
72%
60%
57%
73%
79%
UV - - 1 2 4 1 1 -

UK video forecast

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WARNING
Flood alerts icon
Flood alerts in force for Wales
Flood alerts in force for Wales

Wales weather forecast

Headline:

Remaining changeable with rain tonight.

This Evening and Tonight:

Cloudy this evening then turning increasingly wet and windy overnight with a band of heavy and persistent rain pushing eastwards. Rain most persistent over the mountains, with flooding possible. Mild overnight. Minimum temperature 11 °C.

Wednesday:

Heavy, persistent rain clearing eastwards through the morning, though remaining cloudy with outbreaks of patchy rain and drizzle throughout the day, turning heavy at times over the hills. Breezy. Maximum temperature 18 °C.

Outlook for Thursday to Saturday:

Remaining changeable with showers or longer spells of rain at times, though brighter interludes are possible. Often breezy. A little milder and more humid by the end of the week.

Updated:

UK long range weather forecast

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