Builth Wells weather live forecast

Today's maximum temperature in Builth Wells is expected to be 19°C. Select a day from the live weather forecast for Builth Wells, Wales, UK for more weather parameters.

5-day weather forecast updated at 04:04 on Sunday 7th September 2025 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 Sunday 7th September 2025

Expect mostly cloudy with light rain in Builth Wells, Wales with a maximum temperature of 19°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 23 kph from the south-east.

  • 19°C maximum temperature19
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 86% chance of some rain86
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 23 kph from the South-East23
    kph wind from SE

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Builth Wells weather for Monday 8th September 2025

Expect sunshine and showers in Builth Wells, Wales with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 20% chance of some rain and a moderate breeze of 24 kph from the south-west.

  • 17°C maximum temperature17
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 20% chance of some rain20
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 17°C wind chill17
    °C wind chill
  • Moderate breeze of 24 kph from the South-West24
    kph wind from SW

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Builth Wells weather for Tuesday 9th September 2025

Expect broken clouds in Builth Wells, Wales with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 28 kph from the south.

  • 18°C maximum temperature18
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    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
  • Moderate breeze of 28 kph from the South28
    kph wind from S

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Builth Wells weather for Wednesday 10th September 2025

Expect mostly cloudy with light rain in Builth Wells, Wales with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 78% chance of some rain and a moderate breeze of 24 kph from the south.

  • 17°C maximum temperature17
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 78% chance of some rain78
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 17°C wind chill17
    °C wind chill
  • Moderate breeze of 24 kph from the South24
    kph wind from S

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Builth Wells weather for Thursday 11th September 2025

Expect mostly cloudy with light rain in Builth Wells, Wales with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 77% chance of some rain and a fresh breeze of 30 kph from the south-west.

  • 15°C maximum temperature15
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 77% chance of some rain77
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Fresh breeze of 30 kph from the South-West30
    kph wind from SW

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

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