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

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Light Snow Fog/Mist

25°F

-4°C

Humidity 88%
Wind Speed E 3 mph
Barometer 30.17 in (1023.0 mb)
Dewpoint 22°F (-6°C)
Visibility 1.50 mi
Last update 1 Dec 3:51 pm CST
Extended Forecast for

Clayton MO

Winter Weather Advisory December 1, 04:41pm until December 2, 12:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 1, 04:41pm until December 2, 12:00am

    NOW until 12:00am Tue

    Winter Weather Advisory

  • This Afternoon

    High: 26 °F

    Snow

  • Tonight

    Tonight: Snow, mainly before midnight. Low around 20. Calm wind becoming northwest 5 to 7 mph in the evening. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Snow then
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 28. Northwest wind around 6 mph becoming light and variable in the afternoon.

    High: 28 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. South wind 3 to 5 mph.

    Low: 22 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 39. South wind around 6 mph becoming northwest in the afternoon.

    High: 39 °F

    Partly Sunny

  • Wednesday Night

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

    Low: 14 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Snow, mainly before 5pm. High near 26. Calm wind. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow, mainly before midnight. Low around 20. Calm wind becoming northwest 5 to 7 mph in the evening. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Partly sunny, with a high near 28. Northwest wind around 6 mph becoming light and variable in the afternoon.
Tuesday Night
Partly cloudy, with a low around 22. South wind 3 to 5 mph.
Wednesday
Partly sunny, with a high near 39. South wind around 6 mph becoming northwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 14.
Thursday
Mostly sunny, with a high near 21.
Thursday Night
Partly cloudy, with a low around 12.
Friday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 38.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Partly sunny, with a high near 39.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Mostly cloudy, with a high near 36.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
Partly sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton MO
 38.64°N 90.34°W (Elev. 522 ft)
Last Update:
4:21 pm CST Dec 1, 2025
Forecast Valid:
4pm CST Dec 1, 2025-6pm CST Dec 8, 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