National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

70°F

21°C

Humidity 64%
Wind Speed S 6 mph
Barometer 29.67 in (1004.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 22 Mar 7:53 am CDT
Extended Forecast for

2 Miles WNW Belleville IL

  • Today

    Today: Mostly sunny, with a high near 91. Southwest wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 37. Breezy, with a north wind 13 to 23 mph, with gusts as high as 38 mph.

    Low: 37 °F

    Chance
    Showers and
    Breezy then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 56. North wind around 10 mph.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39. Northeast wind around 6 mph.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65. Southeast wind 5 to 7 mph.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.

    Low: 61 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 88.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 91. Southwest wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 37. Breezy, with a north wind 13 to 23 mph, with gusts as high as 38 mph.
Monday
Mostly sunny, with a high near 56. North wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 39. Northeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 65. Southeast wind 5 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 46.
Wednesday
Partly sunny, with a high near 75.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 88.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 43.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 53.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 57.
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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:
8:26 am CDT Mar 22, 2026
Forecast Valid:
8am CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation