Builth Wells weather live forecast

Today's maximum temperature in Builth Wells is expected to be 20°C. Select a day from the live weather forecast for Builth Wells, Wales, UK for more weather parameters.

Monday
21st Sep
20

9

2

2
Tuesday
22nd Sep
21

14

3

3
Wednesday
23rd Sep
18

11

5

2
Thursday
24th Sep
19

9

5

3
Friday
25th Sep
19

11

3

3

5-day weather forecast updated at 04:06 on Monday 21st September 2026 GMT

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The 5-day weather forecast for Wales (Builth Wells) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Builth Wells weather forecast by day

Below are the detailed weather forecasts for Builth Wells for the next 5 days.

Builth Wells weather for Monday 21st September 2026

Expect broken clouds in Builth Wells, Wales with a maximum temperature of 20°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

20
°C maximum temperature
9
°C minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from W

Builth Wells weather for Tuesday 22nd September 2026

Expect fog in low lying areas in Builth Wells, Wales with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the west.

21
°C maximum temperature
14
°C minimum temperature
fog in low lying areas
3
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
21
°C wind chill
6
kph wind from W

Builth Wells weather for Wednesday 23rd September 2026

Expect broken clouds in Builth Wells, Wales with a maximum temperature of 18°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north.

18
°C maximum temperature
11
°C minimum temperature
broken clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from N

Builth Wells weather for Thursday 24th September 2026

Expect broken clouds in Builth Wells, Wales with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south.

19
°C maximum temperature
9
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
23
kph wind from S

Builth Wells weather for Friday 25th September 2026

Expect broken clouds in Builth Wells, Wales with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.