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.

Mostly Cloudy

17°F

-8°C

Humidity 74%
Wind Speed N 7 mph
Barometer 30.44 in (1032.1 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 4 Dec 8:51 am CST
Extended Forecast for

Saint Louis MO

  • Today

    Today: Partly sunny, with a high near 23. North wind 5 to 7 mph.

    High: 23 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 13. Northeast wind around 5 mph becoming calm in the evening.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 39. Calm wind becoming south around 6 mph in the morning.

    High: 39 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27. South wind around 5 mph becoming calm after midnight.

    Low: 27 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 38. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 38 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of freezing rain between midnight and 3am, then a chance of snow after 3am. Cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Wintry Mix

  • Sunday

    Sunday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 33.

    High: 33 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 23. North wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 13. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 39. Calm wind becoming south around 6 mph in the morning.
Friday Night
Mostly cloudy, with a low around 27. South wind around 5 mph becoming calm after midnight.
Saturday
Partly sunny, with a high near 38. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
A chance of freezing rain between midnight and 3am, then a chance of snow after 3am. Cloudy, with a low around 28. Chance of precipitation is 30%.
Sunday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 33.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.62°N 90.23°W (Elev. 489 ft)
Last Update:
7:31 am CST Dec 4, 2025
Forecast Valid:
9am CST Dec 4, 2025-6pm CST Dec 10, 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