Builth Wells weather live forecast

Today's maximum temperature in Builth Wells is expected to be 13°C. Select a day from the live weather forecast for Builth Wells, Wales, UK for more weather parameters.

  • Tuesday
    17th Mar
    Broken clouds
  • Wednesday
    18th Mar
    Scattered clouds
  • Thursday
    19th Mar
    Broken clouds
  • Friday
    20th Mar
    Broken clouds
  • Saturday
    21st Mar
    Broken clouds

5-day weather forecast updated at 04:03 on Tuesday 17th March 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 Tuesday 17th March 2026

Expect broken clouds in Builth Wells, Wales with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the south.

  • 13°C maximum temperature13
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 13°C wind chill13
    °C wind chill
  • Moderate breeze of 25 kph from the South25
    kph wind from S

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Builth Wells weather for Wednesday 18th March 2026

Expect scattered clouds in Builth Wells, Wales with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the east.

  • 15°C maximum temperature15
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 16 kph from the East16
    kph wind from E

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Builth Wells weather for Thursday 19th March 2026

Expect broken clouds in Builth Wells, Wales with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the east.

  • 16°C maximum temperature16
    °C maximum temperature
  • 2°C minimum temperature2
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Gentle breeze of 15 kph from the East15
    kph wind from E

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Builth Wells weather for Friday 20th March 2026

Expect broken clouds in Builth Wells, Wales with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 3°C minimum temperature3
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 8 kph from the East8
    kph wind from E

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Builth Wells weather for Saturday 21st March 2026

Expect broken clouds in Builth Wells, Wales with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 13°C wind chill13
    °C wind chill
  • Gentle breeze of 13 kph from the East13
    kph wind from E

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  • Save 8% on spa breaks, spa days & gift vouchers
  • Check out latest offers on over 550 spas across the UK
  • A guaranteed experience to suit your budget & occasion
Show discount codeShow discount code ******SB8

Expires at 23:59 on Thursday 31st Dec 2026 · View all Spabreaks.com offers

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Metric (°C / mm)  |  Imperial (°F / inches)

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