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

33°F

1°C

Humidity 64%
Wind Speed E 7 mph
Barometer 30.17 in (1022.1 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 8 Feb 7:53 pm CST
Extended Forecast for

2 Miles WNW Belleville IL

  • Tonight

    Tonight: Mostly clear, with a low around 28. East wind 5 to 7 mph becoming calm after midnight.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 55. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Southeast wind around 7 mph becoming southwest after midnight.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. West wind around 7 mph becoming north in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. North wind around 6 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 28. East wind 5 to 7 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 55. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 42. Southeast wind around 7 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 60. West wind around 7 mph becoming north in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 34. North wind around 6 mph.
Wednesday
Mostly sunny, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 45.
Thursday Night
A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 33.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 45.
Friday Night
A 30 percent chance of rain. Partly cloudy, with a low around 32.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 46.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Sunday
A 20 percent chance of rain. Sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Belleville IL
 38.55°N 90.04°W (Elev. 538 ft)
Last Update:
7:21 pm CST Feb 8, 2026
Forecast Valid:
8pm CST Feb 8, 2026-6pm CST Feb 15, 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