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

66°F

19°C

Humidity 78%
Wind Speed Calm
Barometer 30.14 in (1020.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 31 Aug 4:53 am CDT
Extended Forecast for

3 Miles NW Belleville IL

  • Today

    Today: Partly sunny, with a high near 82. East wind 5 to 9 mph.

    High: 82 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Northeast wind around 6 mph becoming calm after midnight.

    Low: 58 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Partly sunny, with a high near 80. East wind 5 to 7 mph.

    High: 80 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 79. Calm wind becoming north around 6 mph in the afternoon.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Sunny then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 82. East wind 5 to 9 mph.
Tonight
Partly cloudy, with a low around 58. Northeast wind around 6 mph becoming calm after midnight.
Labor Day
Partly sunny, with a high near 80. East wind 5 to 7 mph.
Monday Night
Mostly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 79. Calm wind becoming north around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 85.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Belleville IL
 38.55°N 90.04°W (Elev. 538 ft)
Last Update:
4:16 am CDT Aug 31, 2025
Forecast Valid:
5am CDT Aug 31, 2025-6pm CDT Sep 6, 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