St Louis weather live forecast

Today's maximum temperature in St Louis is expected to be 97°F. Select a day from the live weather forecast for St Louis, Missouri, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Monday 18th August 2025 GMT

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

St Louis weather forecast by day

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

St Louis weather for Monday 18th August 2025

Expect scattered clouds in St Louis, Missouri with a maximum temperature of 97°F, high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 mph from the south.

  • 97°F maximum temperature97
    °F maximum temperature
  • 79°F minimum temperature79
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Little or no wind of 3 mph from the South3
    mph wind from S

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St Louis weather for Tuesday 19th August 2025

Expect isolated thunderstorms in St Louis, Missouri with a maximum temperature of 91°F, high levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 53% chance of some rain and little or no wind of 2 mph from the north-west.

  • 91°F maximum temperature91
    °F maximum temperature
  • 82°F minimum temperature82
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 53% chance of some rain53
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Little or no wind of 2 mph from the North-West2
    mph wind from NW

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St Louis weather for Wednesday 20th August 2025

Expect broken clouds in St Louis, Missouri with a maximum temperature of 90°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the north.

  • 90°F maximum temperature90
    °F maximum temperature
  • 77°F minimum temperature77
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 6 mph from the North6
    mph wind from N

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St Louis weather for Thursday 21st August 2025

Expect broken clouds in St Louis, Missouri with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 4 mph from the north-east.

  • 86°F maximum temperature86
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 4 mph from the North-East4
    mph wind from NE

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St Louis weather for Friday 22nd August 2025

Expect scattered clouds in St Louis, Missouri with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 2 mph from the north-east.

  • 86°F maximum temperature86
    °F maximum temperature
  • 70°F minimum temperature70
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 2 mph from the North-East2
    mph wind from NE

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