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.

A Few Clouds

27°F

-3°C

Humidity 72%
Wind Speed W 3 mph
Barometer 30.13 in (1021.5 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 3 Jan 10:51 pm CST
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Mostly clear, with a low around 26. Light north wind.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 43. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Cloudy during the early evening, then gradual clearing, with a low around 34. South wind 6 to 8 mph.

    Low: 34 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 59. Southwest wind around 6 mph.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. South wind around 6 mph.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 26. Light north wind.
Sunday
Partly sunny, with a high near 43. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 34. South wind 6 to 8 mph.
Monday
Sunny, with a high near 59. Southwest wind around 6 mph.
Monday Night
Partly cloudy, with a low around 45. South wind around 6 mph.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 47.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 62.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 46.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 58.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 35.
Saturday
Partly sunny, with a high near 45.
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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:
10:11 pm CST Jan 3, 2026
Forecast Valid:
11pm CST Jan 3, 2026-6pm CST Jan 10, 2026
 
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