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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

46°F

8°C

Humidity 66%
Wind Speed SE 7 mph
Barometer 29.90 in (1012.7 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 6 Dec 3:53 pm CST
Extended Forecast for

3 Miles SSE Belleville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. South wind 3 to 6 mph.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of drizzle before 5pm, then a slight chance of snow. Mostly cloudy, with a high near 40. Light and variable wind becoming north 8 to 13 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 40 °F

    Slight Chance
    Drizzle then
    Slight Chance
    Drizzle/Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20. North wind 5 to 11 mph.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 34. North wind around 5 mph becoming calm in the morning.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. Calm wind becoming south 5 to 9 mph in the evening.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. South wind 3 to 6 mph.
Sunday
A slight chance of drizzle before 5pm, then a slight chance of snow. Mostly cloudy, with a high near 40. Light and variable wind becoming north 8 to 13 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 20. North wind 5 to 11 mph.
Monday
Mostly sunny, with a high near 34. North wind around 5 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 25. Calm wind becoming south 5 to 9 mph in the evening.
Tuesday
Mostly sunny, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
A slight chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 28.
Friday Night
Partly cloudy, with a low around 10.
Saturday
Mostly sunny, with a high near 24.
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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:
3:16 pm CST Dec 6, 2025
Forecast Valid:
4pm CST Dec 6, 2025-6pm CST Dec 13, 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