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.

Fair

27°F

-3°C

Humidity 72%
Wind Speed N 10 mph
Barometer 30.45 in (1031.6 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 28 Nov 1:53 am CST
Extended Forecast for

3 Miles SSE Belleville IL

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

  • Overnight

    Overnight: Clear, with a low around 23. Northwest wind around 5 mph.

    Low: 23 °F

    Clear

  • Friday

    Friday: Increasing clouds, with a high near 39. Northwest wind around 5 mph becoming light and variable in the morning.

    High: 39 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Snow, mainly after 4am. Low around 31. Light southeast wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Cloudy then
    Snow

  • Saturday

    Saturday: Snow and sleet before 11am, then rain, snow, and sleet between 11am and noon, then rain after noon. High near 39. Southeast wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

    High: 39 °F

    Wintry Mix
    then Rain

  • Saturday Night

    Saturday Night: Rain, mixing with snow after 9pm, then gradually ending. Low around 26. South wind around 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 26 °F

    Rain/Snow
    then Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

Detailed Forecast

Overnight
Clear, with a low around 23. Northwest wind around 5 mph.
Friday
Increasing clouds, with a high near 39. Northwest wind around 5 mph becoming light and variable in the morning.
Friday Night
Snow, mainly after 4am. Low around 31. Light southeast wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday
Snow and sleet before 11am, then rain, snow, and sleet between 11am and noon, then rain after noon. High near 39. Southeast wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Saturday Night
Rain, mixing with snow after 9pm, then gradually ending. Low around 26. South wind around 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Mostly cloudy, with a high near 30.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
Mostly cloudy, with a high near 29.
Monday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 35.
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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:
2:16 am CST Nov 28, 2025
Forecast Valid:
2am CST Nov 28, 2025-6pm CST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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