St Gallen weather live forecast

Today's maximum temperature in St Gallen is expected to be 16°C. Select a day from the live weather forecast for St Gallen, Switzerland for more weather parameters.

5-day weather forecast updated at 04:02 on Tuesday 2nd September 2025 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 Tuesday 2nd September 2025

Expect mostly cloudy with light rain in St Gallen, Switzerland with a maximum temperature of 16°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 76% chance of some rain and a light breeze of 9 kph from the south.

  • 16°C maximum temperature16
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 76% chance of some rain76
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Light breeze of 9 kph from the South9
    kph wind from S

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St Gallen weather for Wednesday 3rd September 2025

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

  • 20°C maximum temperature20
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    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 South9
    kph wind from S

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St Gallen weather for Thursday 4th September 2025

Expect isolated thunderstorms in St Gallen, Switzerland with a maximum temperature of 23°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 20-30 mm of rainfall expected with 93% chance of some rain and a light breeze of 9 kph from the south-west.

  • 23°C maximum temperature23
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 93% chance of some rain93
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 9 kph from the South-West9
    kph wind from SW

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St Gallen weather for Friday 5th September 2025

Expect isolated thunderstorms in St Gallen, Switzerland with a maximum temperature of 15°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 73% chance of some rain and a light breeze of 9 kph from the west.

  • 15°C maximum temperature15
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 73% chance of some rain73
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 9 kph from the West9
    kph wind from W

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St Gallen weather for Saturday 6th September 2025

Expect scattered clouds in St Gallen, Switzerland with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.

  • 19°C maximum temperature19
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 19°C wind chill19
    °C wind chill
  • Light breeze of 8 kph from the South8
    kph wind from S

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

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