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.

Light Snow Fog/Mist

32°F

0°C

Humidity 88%
Wind Speed E 7 mph
Barometer 30.29 in (1026.1 mb)
Dewpoint 29°F (-2°C)
Visibility 1.00 mi
Wind Chill25°F (-4°C)
Last update 29 Nov 3:53 am CST
Extended Forecast for

3 Miles SSE Belleville IL

Winter Weather Advisory November 29, 04:55am until November 30, 12:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory November 29, 04:55am until November 30, 12:00am

    NOW until 12:00am Sun

    Winter Weather Advisory

  • Overnight

    Low: 30 °F

    Snow

  • Saturday

    Saturday: Rain and snow, possibly mixed with sleet, becoming all rain after 2pm. High near 40. Southeast wind 13 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

    High: 40 °F

    Wintry Mix

  • Saturday Night

    Saturday Night: A 50 percent chance of rain, mainly before 9pm. Cloudy, with a low around 25. South wind 16 to 18 mph becoming west after midnight. Winds could gust as high as 33 mph.

    Low: 25 °F

    Chance Rain
    then Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 30. Northwest wind 9 to 17 mph, with gusts as high as 30 mph.

    High: 30 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow after noon. Cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: Snow likely. Cloudy, with a low around 23. Chance of precipitation is 70%.

    Low: 23 °F

    Snow Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

Overnight
Snow. Low around 30. East wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Rain and snow, possibly mixed with sleet, becoming all rain after 2pm. High near 40. Southeast wind 13 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Saturday Night
A 50 percent chance of rain, mainly before 9pm. Cloudy, with a low around 25. South wind 16 to 18 mph becoming west after midnight. Winds could gust as high as 33 mph.
Sunday
Mostly cloudy, with a high near 30. Northwest wind 9 to 17 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 20. Northwest wind 5 to 8 mph becoming calm after midnight.
Monday
A 20 percent chance of snow after noon. Cloudy, with a high near 31.
Monday Night
Snow likely. Cloudy, with a low around 23. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Partly sunny, with a high near 28.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Belleville IL
 38.5°N 89.98°W (Elev. 495 ft)
Last Update:
4:46 am CST Nov 29, 2025
Forecast Valid:
4am CST Nov 29, 2025-6pm CST Dec 5, 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