St Gallen weather live forecast

Today's maximum temperature in St Gallen is expected to be 20°C. Select a day from the live weather forecast for St Gallen, Switzerland for more weather parameters.

5-day weather forecast updated at 04:01 on Sunday 23rd August 2026 GMT

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

St Gallen weather forecast by day

Below are the detailed weather forecasts for St Gallen for the next 5 days.

St Gallen weather for Sunday 23rd August 2026

Expect scattered clouds in St Gallen, Switzerland with a maximum temperature of 20°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north-east.

  • 20°C maximum temperature20
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 9 kph from the North-East9
    kph wind from NE

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St Gallen weather for Monday 24th August 2026

Expect broken clouds in St Gallen, Switzerland with a maximum temperature of 23°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-east.

  • 23°C maximum temperature23
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 23°C wind chill23
    °C wind chill
  • Light breeze of 8 kph from the North-East8
    kph wind from NE

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St Gallen weather for Tuesday 25th August 2026

Expect isolated thunderstorms in St Gallen, Switzerland with a maximum temperature of 23°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 61% chance of some rain and a light breeze of 8 kph from the north-west.

  • 23°C maximum temperature23
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 61% chance of some rain61
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 23°C wind chill23
    °C wind chill
  • Light breeze of 8 kph from the North-West8
    kph wind from NW

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St Gallen weather for Wednesday 26th August 2026

Expect sunshine and showers in St Gallen, Switzerland with a maximum temperature of 24°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 13% chance of some rain and a light breeze of 7 kph from the south.

  • 24°C maximum temperature24
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 13% chance of some rain13
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 24°C wind chill24
    °C wind chill
  • Light breeze of 7 kph from the South7
    kph wind from S

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St Gallen weather for Thursday 27th August 2026

Expect broken clouds in St Gallen, Switzerland with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south.

  • 27°C maximum temperature27
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 10 kph from the South10
    kph wind from S

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