Alwen Reservoir (Denbighshire) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 0° Celsius;
Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 0 degrees Celsius; -
Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 3° Celsius;
Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius; -
Maximum daytime temperature: 8° Celsius; Minimum nighttime temperature: 4° Celsius;
Maximum daytime temperature: 8 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius; -
Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 2° Celsius;
Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius;
-
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: -2° Celsius;
Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: -2 degrees Celsius;
-
Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 3° Celsius;
Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius;
-
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 6° Celsius;
Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius;
7 day forecast for Alwen Reservoir
Today (9 April 2026)
| Time |
21:00
|
22:00
|
23:00
|
|---|---|---|---|
| Weather symbols |  |
 |
|
| Chance of precipitation |
40%
|
20%
|
20%
|
| Temperature |
4°
|
4°
|
4°
|
| Feels like temperature (°C) |
0°
|
0°
|
0°
|
| Wind direction and speed |
W
10
|
W
10
|
WNW
11
|
| Wind gust (mph) |
27
|
27
|
27
|
| Visibility |
VG
|
VG
|
VG
|
| Humidity |
75%
|
76%
|
76%
|
| UV | - | - | - |
Friday (10 April 2026)
| 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 | |
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
 |
|
 |
|
|
|
|
 |
| Chance of precipitation |
40%
|
20%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
30%
|
30%
|
20%
|
20%
|
30%
|
60%
|
80%
|
50%
|
10%
|
<5%
|
<5%
|
30%
|
60%
|
| Temperature (°C) |
3°
|
3°
|
2°
|
2°
|
1°
|
0°
|
0°
|
1°
|
3°
|
4°
|
5°
|
6°
|
7°
|
7°
|
8°
|
8°
|
9°
|
9°
|
8°
|
7°
|
7°
|
6°
|
6°
|
6°
|
| Feels like temperature (°C) |
0°
|
-1°
|
-1°
|
-1°
|
-1°
|
-2°
|
-1°
|
0°
|
1°
|
2°
|
3°
|
4°
|
4°
|
5°
|
5°
|
6°
|
6°
|
6°
|
5°
|
4°
|
3°
|
2°
|
2°
|
2°
|
| Wind direction and speed (mph) |
W
10
|
W
9
|
W
7
|
W
5
|
W
5
|
W
4
|
WSW
3
|
SW
3
|
SW
3
|
SW
5
|
SSW
6
|
SSW
7
|
SSW
8
|
S
9
|
S
9
|
S
10
|
S
11
|
S
11
|
SSE
12
|
SSE
13
|
SSE
13
|
SSE
13
|
SSE
14
|
SSE
15
|
| Wind gust (mph) |
25
|
23
|
20
|
17
|
15
|
12
|
10
|
10
|
12
|
14
|
17
|
19
|
20
|
21
|
23
|
24
|
26
|
27
|
28
|
30
|
31
|
34
|
34
|
34
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
| Humidity |
76%
|
80%
|
81%
|
83%
|
84%
|
85%
|
85%
|
85%
|
76%
|
68%
|
62%
|
56%
|
56%
|
53%
|
50%
|
52%
|
54%
|
58%
|
64%
|
69%
|
72%
|
73%
|
71%
|
72%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - |
Saturday (11 April 2026)
| 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 | |
 |
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
90%
|
≥95%
|
≥95%
|
≥95%
|
90%
|
80%
|
80%
|
80%
|
60%
|
60%
|
60%
|
60%
|
60%
|
60%
|
60%
|
60%
|
50%
|
50%
|
70%
|
60%
|
60%
|
70%
|
60%
|
60%
|
| Temperature (°C) |
6°
|
6°
|
6°
|
5°
|
4°
|
4°
|
4°
|
4°
|
4°
|
5°
|
5°
|
5°
|
6°
|
6°
|
6°
|
7°
|
7°
|
6°
|
6°
|
6°
|
5°
|
5°
|
5°
|
5°
|
| Feels like temperature (°C) |
2°
|
2°
|
2°
|
2°
|
1°
|
1°
|
0°
|
0°
|
0°
|
1°
|
1°
|
1°
|
2°
|
2°
|
2°
|
2°
|
2°
|
2°
|
2°
|
1°
|
1°
|
1°
|
1°
|
1°
|
| Wind direction and speed (mph) |
S
15
|
S
15
|
S
13
|
SW
11
|
SW
10
|
SW
9
|
SSW
9
|
SSW
10
|
SW
11
|
SW
13
|
SW
14
|
SW
14
|
SW
15
|
SW
16
|
SW
17
|
SW
17
|
SW
18
|
SW
17
|
SW
17
|
SSW
17
|
SSW
16
|
SSW
16
|
SSW
15
|
SW
15
|
| Wind gust (mph) |
34
|
33
|
29
|
25
|
23
|
21
|
22
|
25
|
30
|
32
|
34
|
35
|
37
|
39
|
41
|
41
|
41
|
41
|
41
|
39
|
39
|
37
|
36
|
35
|
| Visibility (description) |
G
|
G
|
M
|
M
|
M
|
G
|
G
|
VG
|
G
|
G
|
G
|
G
|
M
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
M
|
G
|
| Humidity |
75%
|
79%
|
87%
|
90%
|
90%
|
87%
|
85%
|
86%
|
83%
|
75%
|
72%
|
67%
|
67%
|
61%
|
58%
|
59%
|
63%
|
65%
|
70%
|
75%
|
80%
|
83%
|
85%
|
84%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - |
Sunday (12 April 2026)
| 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 | |
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
60%
|
80%
|
80%
|
80%
|
60%
|
60%
|
70%
|
80%
|
70%
|
70%
|
60%
|
60%
|
60%
|
60%
|
50%
|
40%
|
50%
|
50%
|
50%
|
50%
|
60%
|
60%
|
70%
|
70%
|
| Temperature (°C) |
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
6°
|
6°
|
6°
|
7°
|
7°
|
8°
|
8°
|
9°
|
9°
|
8°
|
8°
|
7°
|
7°
|
6°
|
5°
|
5°
|
5°
|
| Feels like temperature (°C) |
0°
|
0°
|
1°
|
1°
|
1°
|
1°
|
1°
|
1°
|
2°
|
3°
|
3°
|
4°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
4°
|
4°
|
3°
|
2°
|
2°
|
2°
|
| Wind direction and speed (mph) |
SW
16
|
SW
16
|
SW
15
|
SW
15
|
SW
15
|
SW
14
|
SW
14
|
SW
14
|
SW
14
|
SW
14
|
SW
14
|
SW
14
|
SW
14
|
SW
14
|
SW
14
|
SW
14
|
SW
14
|
SW
13
|
SW
12
|
SW
11
|
SSW
9
|
SSW
8
|
SSW
8
|
SSW
7
|
| Wind gust (mph) |
36
|
37
|
36
|
35
|
34
|
32
|
32
|
32
|
32
|
34
|
34
|
33
|
34
|
34
|
32
|
33
|
31
|
30
|
26
|
23
|
19
|
19
|
19
|
17
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
G
|
VG
|
G
|
VG
|
| Humidity |
85%
|
85%
|
85%
|
85%
|
86%
|
86%
|
86%
|
86%
|
85%
|
84%
|
79%
|
78%
|
74%
|
70%
|
67%
|
66%
|
66%
|
68%
|
71%
|
75%
|
83%
|
86%
|
87%
|
91%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | - | - | - |
Monday (13 April 2026)
| 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 | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
60%
|
60%
|
60%
|
60%
|
50%
|
50%
|
40%
|
50%
|
50%
|
40%
|
40%
|
50%
|
60%
|
60%
|
60%
|
60%
|
60%
|
50%
|
40%
|
30%
|
20%
|
20%
|
10%
|
10%
|
| Temperature (°C) |
4°
|
4°
|
4°
|
3°
|
3°
|
3°
|
3°
|
3°
|
4°
|
5°
|
7°
|
7°
|
8°
|
8°
|
8°
|
9°
|
8°
|
8°
|
8°
|
7°
|
5°
|
3°
|
3°
|
2°
|
| Feels like temperature (°C) |
2°
|
1°
|
2°
|
1°
|
1°
|
1°
|
1°
|
2°
|
3°
|
4°
|
5°
|
6°
|
7°
|
7°
|
7°
|
7°
|
7°
|
6°
|
6°
|
5°
|
3°
|
2°
|
1°
|
0°
|
| Wind direction and speed (mph) |
SSW
6
|
S
5
|
S
5
|
SSW
5
|
S
4
|
SSW
4
|
S
4
|
S
4
|
SSW
4
|
SSW
4
|
SSW
5
|
SW
5
|
WSW
5
|
WSW
5
|
W
6
|
WNW
6
|
WNW
6
|
WNW
6
|
WNW
6
|
W
5
|
NW
4
|
WNW
4
|
W
4
|
WNW
3
|
| Wind gust (mph) |
15
|
15
|
14
|
13
|
13
|
12
|
11
|
12
|
12
|
13
|
13
|
13
|
15
|
15
|
17
|
17
|
17
|
16
|
14
|
12
|
10
|
10
|
9
|
9
|
| Visibility (description) |
VG
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
| Humidity |
92%
|
93%
|
93%
|
93%
|
93%
|
94%
|
95%
|
93%
|
88%
|
84%
|
75%
|
67%
|
64%
|
63%
|
63%
|
62%
|
63%
|
64%
|
67%
|
73%
|
83%
|
88%
|
91%
|
92%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - |
Tuesday (14 April 2026)
| Time |
00:00
|
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
 |
|
|
|
|
|
| Chance of precipitation |
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
| Temperature (°C) |
1°
|
1°
|
0°
|
0°
|
8°
|
11°
|
12°
|
10°
|
6°
|
| Feels like temperature (°C) |
-1°
|
-1°
|
-2°
|
-2°
|
6°
|
9°
|
10°
|
8°
|
3°
|
| Wind direction and speed (mph) |
W
3
|
WSW
4
|
NW
4
|
E
4
|
SSE
5
|
S
8
|
SSE
9
|
SSE
7
|
SSE
7
|
| Wind gust (mph) |
10
|
9
|
8
|
13
|
19
|
21
|
21
|
16
|
19
|
| Visibility (description) |
G
|
G
|
M
|
P
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
93%
|
94%
|
95%
|
96%
|
66%
|
52%
|
50%
|
60%
|
77%
|
| UV | - | - | - | 1 | 2 | 4 | 2 | 1 | - |
Wednesday (15 April 2026)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
30%
|
40%
|
50%
|
50%
|
50%
|
30%
|
30%
|
| Temperature (°C) |
5°
|
4°
|
5°
|
9°
|
12°
|
12°
|
11°
|
8°
|
| Feels like temperature (°C) |
2°
|
1°
|
2°
|
6°
|
9°
|
10°
|
8°
|
5°
|
| Wind direction and speed (mph) |
SSE
9
|
SSE
9
|
SSE
10
|
SSE
12
|
SSE
14
|
S
13
|
S
11
|
S
10
|
| Wind gust (mph) |
21
|
21
|
27
|
30
|
30
|
28
|
24
|
23
|
| Visibility (description) |
M
|
M
|
M
|
G
|
G
|
G
|
VG
|
G
|
| Humidity |
85%
|
91%
|
91%
|
83%
|
71%
|
70%
|
81%
|
89%
|
| UV | - | - | 1 | 2 | 3 | 2 | 1 | - |
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Wales weather forecast
Headline:
Drier this evening with cloud building overnight.
This Evening and Tonight:
A bright end to the afternoon with a few isolated showers lingering into the evening, however most places becoming dry overnight with cloudier skies developing after midnight. Turning chilly with a touch of rural frost. Minimum temperature 1 °C.
Friday:
A largely cloudy morning on Friday with outbreaks of rain pushing across the region during the day. Strengthening winds, these becoming gusty overnight. Maximum temperature 12 °C.
Outlook for Saturday to Monday:
Unsettled through the weekend and Monday with sunny spells and showers or longer spells of rain. The showers locally heavy with thunder. Windy with coastal gales possible, temperatures near average.
Updated:
UK long range weather forecast
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