National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Fair

16°F

-9°C

Humidity 67%
Wind Speed E 5 mph
Barometer 30.24 in (1026.0 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 4 Dec 9:51 pm CST
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Clear, with a low around 10. Light and variable wind.

    Low: 10 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 38. South wind 3 to 6 mph.

    High: 38 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 27. South wind around 6 mph becoming light and variable after midnight.

    Low: 27 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 37. Calm wind becoming east around 5 mph in the afternoon.

    High: 37 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 29. East wind 3 to 5 mph.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A chance of rain and snow, mainly before noon. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.

    High: 36 °F

    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 10. Light and variable wind.
Friday
Sunny, with a high near 38. South wind 3 to 6 mph.
Friday Night
Increasing clouds, with a low around 27. South wind around 6 mph becoming light and variable after midnight.
Saturday
Partly sunny, with a high near 37. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 29. East wind 3 to 5 mph.
Sunday
A chance of rain and snow, mainly before noon. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.26°W (Elev. 499 ft)
Last Update:
8:26 pm CST Dec 4, 2025
Forecast Valid:
10pm CST Dec 4, 2025-6pm CST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation