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

41°F

5°C

Humidity 65%
Wind Speed SW 9 G 20 mph
Barometer 29.96 in (1014.8 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 9 Dec 8:53 am CST
Extended Forecast for

2 Miles SSE Belleville IL

  • Today

    Today: Sunny, with a high near 53. South wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 47. South wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 33 mph.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a temperature falling to around 37 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 39 mph.

    High: 47 °F⇓

    Increasing
    Clouds 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

Today
Sunny, with a high near 53. South wind 10 to 14 mph, with gusts as high as 23 mph.
Tonight
Mostly cloudy, with a steady temperature around 47. South wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 33 mph.
Wednesday
Increasing clouds, with a temperature falling to around 37 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 39 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:
2 Miles SSE Belleville IL
 38.5°N 89.98°W (Elev. 495 ft)
Last Update:
7:52 am CST Dec 9, 2025
Forecast Valid:
9am CST Dec 9, 2025-6pm CST Dec 15, 2025
 
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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