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

14°F

-10°C

Humidity 77%
Wind Speed SE 3 mph
Barometer 30.12 in (1021.8 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 5 Dec 4:51 am CST
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Today

    Today: Sunny, with a high near 41. South wind 5 to 8 mph.

    High: 41 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 31. South wind around 8 mph becoming west after midnight.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 38. Light and variable wind becoming east 5 to 7 mph in the afternoon.

    High: 38 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 30. Southeast wind around 8 mph.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A chance of rain before 9am, then a chance of snow. Mostly cloudy, with a high near 35. Southeast wind 7 to 14 mph becoming northwest in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    High: 35 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 14.

    Low: 14 °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 25.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 41. South wind 5 to 8 mph.
Tonight
Mostly cloudy, with a low around 31. South wind around 8 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 38. Light and variable wind becoming east 5 to 7 mph in the afternoon.
Saturday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 30. Southeast wind around 8 mph.
Sunday
A chance of rain before 9am, then a chance of snow. Mostly cloudy, with a high near 35. Southeast wind 7 to 14 mph becoming northwest in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
3:56 am CST Dec 5, 2025
Forecast Valid:
5am CST Dec 5, 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