Ystradgynlais (Powys) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 8° Celsius;
Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 6° Celsius;
Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius;
-
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius; -
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius;
-
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius;
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius;
-
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius;
7 day forecast for Ystradgynlais
Today (27 April 2026)
| Time |
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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
10°
|
10°
|
10°
|
10°
|
9°
|
9°
|
10°
|
12°
|
14°
|
16°
|
17°
|
19°
|
19°
|
20°
|
20°
|
19°
|
19°
|
18°
|
17°
|
15°
|
14°
|
13°
|
12°
|
| Feels like temperature (°C) |
10°
|
10°
|
10°
|
9°
|
9°
|
8°
|
10°
|
12°
|
14°
|
16°
|
17°
|
18°
|
18°
|
18°
|
18°
|
17°
|
17°
|
16°
|
15°
|
14°
|
12°
|
11°
|
11°
|
| Wind direction and speed |
N
3
|
NNE
3
|
ENE
3
|
NNE
3
|
NE
3
|
N
3
|
N
3
|
S
1
|
SSE
1
|
S
1
|
WNW
2
|
N
3
|
N
4
|
N
4
|
N
5
|
NNW
7
|
NNW
8
|
NNW
9
|
NNW
8
|
N
7
|
N
6
|
NNE
6
|
NE
7
|
| Wind gust (mph) |
8
|
8
|
8
|
9
|
9
|
8
|
8
|
6
|
5
|
6
|
8
|
13
|
15
|
16
|
18
|
19
|
20
|
20
|
19
|
19
|
19
|
19
|
18
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
E
|
VG
|
VG
|
VG
|
E
|
VG
|
VG
|
| Humidity |
72%
|
71%
|
73%
|
72%
|
73%
|
72%
|
70%
|
63%
|
55%
|
45%
|
40%
|
40%
|
40%
|
40%
|
41%
|
43%
|
51%
|
55%
|
60%
|
65%
|
69%
|
65%
|
66%
|
| UV | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | - | - | - |
Tuesday (28 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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
11°
|
10°
|
10°
|
9°
|
9°
|
9°
|
8°
|
9°
|
10°
|
11°
|
12°
|
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
11°
|
10°
|
9°
|
| Feels like temperature (°C) |
10°
|
9°
|
8°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
9°
|
10°
|
11°
|
11°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
11°
|
10°
|
8°
|
7°
|
| Wind direction and speed (mph) |
ENE
7
|
ENE
7
|
NE
7
|
ENE
7
|
ENE
6
|
ENE
6
|
ENE
7
|
ENE
7
|
ENE
8
|
ENE
9
|
ENE
9
|
ENE
9
|
ENE
9
|
ENE
9
|
NE
10
|
NE
10
|
NE
10
|
NE
10
|
NE
9
|
NE
9
|
ENE
8
|
ENE
8
|
ENE
8
|
ENE
9
|
| Wind gust (mph) |
17
|
16
|
15
|
15
|
15
|
17
|
19
|
22
|
23
|
24
|
25
|
25
|
25
|
26
|
26
|
26
|
26
|
25
|
24
|
22
|
22
|
22
|
23
|
25
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
E
|
E
|
VG
|
| Humidity |
72%
|
76%
|
82%
|
85%
|
84%
|
84%
|
83%
|
81%
|
76%
|
76%
|
73%
|
67%
|
66%
|
65%
|
62%
|
60%
|
58%
|
56%
|
57%
|
57%
|
58%
|
62%
|
64%
|
64%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 4 | 4 | 3 | 1 | 1 | 1 | 1 | - | - | - |
Wednesday (29 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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
9°
|
8°
|
7°
|
7°
|
6°
|
6°
|
6°
|
7°
|
8°
|
10°
|
13°
|
14°
|
16°
|
17°
|
18°
|
19°
|
19°
|
19°
|
18°
|
17°
|
15°
|
14°
|
12°
|
11°
|
| Feels like temperature (°C) |
6°
|
5°
|
4°
|
4°
|
3°
|
3°
|
3°
|
3°
|
5°
|
8°
|
10°
|
11°
|
13°
|
14°
|
14°
|
15°
|
15°
|
15°
|
14°
|
13°
|
12°
|
11°
|
9°
|
8°
|
| Wind direction and speed (mph) |
ENE
9
|
ENE
10
|
ENE
10
|
ENE
10
|
ENE
11
|
ENE
11
|
ENE
11
|
ENE
11
|
ENE
12
|
ENE
12
|
ENE
13
|
ENE
13
|
ENE
14
|
ENE
14
|
ENE
14
|
ENE
15
|
ENE
15
|
ENE
14
|
ENE
14
|
ENE
13
|
ENE
13
|
ENE
13
|
ENE
13
|
ENE
13
|
| Wind gust (mph) |
25
|
25
|
26
|
26
|
26
|
26
|
27
|
29
|
30
|
32
|
34
|
36
|
37
|
37
|
36
|
36
|
36
|
36
|
35
|
34
|
34
|
34
|
34
|
34
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
65%
|
67%
|
67%
|
69%
|
71%
|
73%
|
74%
|
74%
|
67%
|
61%
|
54%
|
45%
|
40%
|
40%
|
40%
|
38%
|
38%
|
36%
|
37%
|
39%
|
40%
|
40%
|
41%
|
43%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - |
Thursday (30 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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
10%
|
| Temperature (°C) |
10°
|
10°
|
9°
|
9°
|
8°
|
8°
|
8°
|
8°
|
10°
|
12°
|
14°
|
16°
|
18°
|
19°
|
20°
|
20°
|
20°
|
20°
|
19°
|
17°
|
15°
|
14°
|
12°
|
12°
|
| Feels like temperature (°C) |
8°
|
7°
|
6°
|
6°
|
6°
|
5°
|
5°
|
6°
|
8°
|
10°
|
12°
|
13°
|
14°
|
15°
|
16°
|
17°
|
17°
|
17°
|
16°
|
15°
|
14°
|
12°
|
11°
|
11°
|
| Wind direction and speed (mph) |
ENE
13
|
ENE
12
|
ENE
12
|
ENE
12
|
ENE
11
|
ENE
11
|
ENE
11
|
ENE
11
|
ENE
11
|
E
12
|
E
13
|
E
13
|
E
14
|
E
13
|
E
13
|
ESE
12
|
ESE
12
|
ESE
11
|
ESE
10
|
ESE
9
|
ESE
7
|
E
7
|
ENE
7
|
ENE
7
|
| Wind gust (mph) |
33
|
33
|
32
|
31
|
31
|
30
|
30
|
30
|
31
|
32
|
34
|
35
|
35
|
34
|
33
|
31
|
29
|
28
|
25
|
23
|
21
|
21
|
21
|
20
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
52%
|
56%
|
58%
|
60%
|
64%
|
65%
|
65%
|
64%
|
59%
|
54%
|
46%
|
41%
|
40%
|
40%
|
39%
|
38%
|
37%
|
38%
|
39%
|
42%
|
45%
|
47%
|
49%
|
49%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - |
Friday (1 May 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%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
10%
|
| Temperature (°C) |
12°
|
11°
|
10°
|
10°
|
14°
|
17°
|
18°
|
17°
|
11°
|
| Feels like temperature (°C) |
10°
|
10°
|
9°
|
9°
|
13°
|
16°
|
17°
|
16°
|
11°
|
| Wind direction and speed (mph) |
ENE
7
|
ENE
7
|
ENE
6
|
ENE
5
|
SE
6
|
SSE
7
|
S
7
|
SW
5
|
N
3
|
| Wind gust (mph) |
20
|
19
|
15
|
16
|
18
|
19
|
17
|
12
|
8
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
51%
|
54%
|
58%
|
65%
|
57%
|
50%
|
50%
|
60%
|
85%
|
| UV | - | - | - | 1 | 3 | 5 | 3 | 1 | - |
Saturday (2 May 2026)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
20%
|
30%
|
30%
|
30%
|
20%
|
20%
|
| Temperature (°C) |
10°
|
9°
|
9°
|
14°
|
17°
|
17°
|
15°
|
11°
|
| Feels like temperature (°C) |
9°
|
8°
|
9°
|
14°
|
16°
|
16°
|
14°
|
11°
|
| Wind direction and speed (mph) |
E
3
|
E
4
|
E
3
|
SE
5
|
S
6
|
SSW
7
|
WSW
7
|
WSW
4
|
| Wind gust (mph) |
8
|
8
|
12
|
17
|
18
|
17
|
14
|
9
|
| Visibility (description) |
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
89%
|
88%
|
82%
|
70%
|
60%
|
61%
|
69%
|
88%
|
| UV | - | - | 1 | 3 | 4 | 2 | 1 | - |
Sunday (3 May 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%
|
30%
|
40%
|
40%
|
30%
|
30%
|
20%
|
| Temperature (°C) |
9°
|
8°
|
9°
|
13°
|
15°
|
15°
|
13°
|
10°
|
| Feels like temperature (°C) |
9°
|
8°
|
8°
|
12°
|
13°
|
13°
|
12°
|
9°
|
| Wind direction and speed (mph) |
SSW
3
|
S
3
|
SSE
4
|
SW
6
|
SW
8
|
WSW
9
|
W
8
|
W
5
|
| Wind gust (mph) |
9
|
9
|
14
|
19
|
21
|
22
|
18
|
14
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
G
|
| Humidity |
93%
|
96%
|
93%
|
82%
|
69%
|
66%
|
75%
|
91%
|
| UV | - | - | 1 | 3 | 3 | 2 | 1 | - |
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Wales weather forecast
Headline:
Largely fine and dry during the coming days.
This Evening and Tonight:
Rather cloudy at times this evening with a small risk of a light shower. A mix of cloud and clear spells overnight. Turning chilly in the countryside by dawn. Minimum temperature 2 °C.
Monday:
A dry and settled day ahead with sunny spells. Light winds but turning breezier around coasts later. Feeling warm in the sunshine, especially in southern parts of Wales. Maximum temperature 20 °C.
Outlook for Tuesday to Thursday:
Cloudier to start on Tuesday but turning brighter. A settled end to April with lots of sunshine from Wednesday. Feeling warm, but nights still on the chilly side.
Updated:
UK long range weather forecast
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