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

52°F

11°C

Humidity 49%
Wind Speed S 12 G 22 mph
Barometer 29.82 in (1009.8 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 9 Dec 12:53 pm CST
Extended Forecast for

3 Miles SSE Belleville IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 53. South wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 53 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of rain between 1am and 5am. Mostly cloudy, with a low around 40. South wind around 16 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a temperature falling to around 35 by 5pm. Breezy, with a northwest wind 19 to 24 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 46 mph.

    High: 43 °F⇓

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 41. Calm wind becoming southwest around 6 mph in the morning.

    High: 41 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 53. South wind 10 to 14 mph, with gusts as high as 23 mph.
Tonight
A slight chance of rain between 1am and 5am. Mostly cloudy, with a low around 40. South wind around 16 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a temperature falling to around 35 by 5pm. Breezy, with a northwest wind 19 to 24 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 46 mph.
Wednesday Night
Mostly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light after midnight.
Thursday
Mostly cloudy, with a high near 41. Calm wind becoming southwest around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
Partly sunny, with a high near 43.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 29.
Saturday Night
Mostly cloudy, with a low around 11.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Partly cloudy, with a low around 15.
Monday
A slight chance of rain and snow. Partly sunny, with a high near 37. Chance of precipitation is 20%.
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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:
11:41 am CST Dec 9, 2025
Forecast Valid:
1pm CST Dec 9, 2025-6pm CST Dec 15, 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