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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Snow Fog/Mist

26°F

-3°C

Humidity 88%
Wind Speed Calm
Barometer 30.23 in (1024.1 mb)
Dewpoint 23°F (-5°C)
Visibility 2.00 mi
Last update 1 Dec 1:53 pm CST
Extended Forecast for

2 Miles SSE Belleville IL

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

    NOW until 12:00am Tue

    Winter Weather Advisory

  • This Afternoon

    High: 26 °F

    Snow Likely

  • Tonight

    Tonight: Snow, mainly before midnight. Low around 20. Calm wind becoming northwest 5 to 7 mph after midnight. 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 5 to 7 mph becoming calm in the afternoon.

    High: 28 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21. Calm wind becoming south around 6 mph after midnight.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 41. South wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

This Afternoon
Snow likely, mainly before 4pm. Cloudy, with a high near 26. Light and variable wind. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow, mainly before midnight. Low around 20. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Partly sunny, with a high near 28. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 21. Calm wind becoming south around 6 mph after midnight.
Wednesday
Partly sunny, with a high near 41. South wind 5 to 7 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 17.
Thursday
Partly sunny, with a high near 24.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 15.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 35.
Friday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Mostly cloudy, with a high near 37.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Belleville IL
 38.5°N 89.98°W (Elev. 495 ft)
Last Update:
12:51 pm CST Dec 1, 2025
Forecast Valid:
2pm CST Dec 1, 2025-6pm CST Dec 7, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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