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

34°F

1°C

Humidity 70%
Wind Speed E 3 mph
Barometer 30.15 in (1021.2 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 2 Feb 7:53 pm CST
Extended Forecast for

Scott Air Force Base / Belleville IL

  • Tonight

    Tonight: A slight chance of freezing rain after 5am. Cloudy, with a low around 29. Light northeast wind. Chance of precipitation is 20%.

    Low: 29 °F

    Cloudy then
    Slight Chance
    Freezing Rain

  • Tuesday

    Tuesday: A slight chance of freezing rain before 7am, then a chance of snow between 7am and noon. Mostly cloudy, with a high near 36. North wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 36 °F

    Chance Wintry
    Mix then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17. North wind 3 to 7 mph.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 30. Calm wind becoming north 5 to 7 mph.

    High: 30 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 14. Calm wind.

    Low: 14 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Thursday Night

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

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of freezing rain after 5am. Cloudy, with a low around 29. Light northeast wind. Chance of precipitation is 20%.
Tuesday
A slight chance of freezing rain before 7am, then a chance of snow between 7am and noon. Mostly cloudy, with a high near 36. North wind 5 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 17. North wind 3 to 7 mph.
Wednesday
Mostly sunny, with a high near 30. Calm wind becoming north 5 to 7 mph.
Wednesday Night
Mostly clear, with a low around 14. Calm wind.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly clear, with a low around 31.
Friday
Mostly sunny, with a high near 48.
Friday Night
Mostly clear, with a low around 22.
Saturday
Mostly sunny, with a high near 39.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Scott Air Force Base / Belleville IL
 38.54°N 89.84°W (Elev. 417 ft)
Last Update:
7:57 pm CST Feb 2, 2026
Forecast Valid:
8pm CST Feb 2, 2026-6pm CST Feb 9, 2026
 
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