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

29°F

-2°C

Humidity 75%
Wind Speed SE 8 mph
Barometer 30.23 in (1024.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 8 Dec 6:51 pm CST
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Increasing clouds, with a low around 28. Southeast wind 5 to 8 mph becoming south after midnight.

    Low: 28 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 54. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.

    High: 54 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a steady temperature around 47. South wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 37 mph.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a temperature falling to around 38 by 5pm. Breezy, with a northwest wind 13 to 22 mph, with gusts as high as 37 mph.

    High: 47 °F⇓

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27. Northwest wind 5 to 9 mph becoming light west after midnight.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 28. Southeast wind 5 to 8 mph becoming south after midnight.
Tuesday
Mostly sunny, with a high near 54. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a steady temperature around 47. South wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 37 mph.
Wednesday
Partly sunny, with a temperature falling to around 38 by 5pm. Breezy, with a northwest wind 13 to 22 mph, with gusts as high as 37 mph.
Wednesday Night
Mostly cloudy, with a low around 27. Northwest wind 5 to 9 mph becoming light west after midnight.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 35.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Partly sunny, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
A 20 percent chance of rain. Mostly cloudy, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
5:06 pm CST Dec 8, 2025
Forecast Valid:
7pm CST Dec 8, 2025-6pm CST Dec 15, 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