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

67°F

19°C

Humidity 81%
Wind Speed S 6 mph
Barometer 29.77 in (1007.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 18 Oct 8:53 am CDT
Extended Forecast for

2 Miles WNW Belleville IL

  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 72. Southwest wind 7 to 10 mph. Chance of precipitation is 90%.

    High: 72 °F

    Chance
    T-storms then
    T-storms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before midnight, then showers likely. Some of the storms could produce heavy rainfall. Low around 51. Breezy, with a southwest wind 8 to 13 mph becoming northwest 16 to 21 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%.

    Low: 51 °F

    Heavy Rain
    then Showers
    Likely and
    Breezy

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 64. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph.

    High: 64 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 45. West wind 5 to 8 mph becoming southwest after midnight.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. South wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 72. Southwest wind 7 to 10 mph. Chance of precipitation is 90%.
Tonight
Showers and possibly a thunderstorm before midnight, then showers likely. Some of the storms could produce heavy rainfall. Low around 51. Breezy, with a southwest wind 8 to 13 mph becoming northwest 16 to 21 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 64. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph.
Sunday Night
Clear, with a low around 45. West wind 5 to 8 mph becoming southwest after midnight.
Monday
Sunny, with a high near 72. South wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Clear, with a low around 42.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 70.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 49.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 69.
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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 Oct 18, 2025
Forecast Valid:
9am CDT Oct 18, 2025-6pm CDT Oct 24, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation