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.

Mostly Cloudy

43°F

6°C

Humidity 63%
Wind Speed NE 15 G 20 mph
Barometer 30.40 in (1029.3 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 7 Apr 6:53 am CDT
Extended Forecast for

2 Miles NW Belleville IL

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 55. East wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 55 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 40. East wind around 8 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. South wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. South wind 8 to 10 mph.

    High: 77 °F

    Sunny

  • Thursday Night

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

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 55. East wind 9 to 14 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 40. East wind around 8 mph.
Wednesday
Mostly sunny, with a high near 72. South wind 7 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 53. South wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 77. South wind 8 to 10 mph.
Thursday Night
Partly cloudy, with a low around 58.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Belleville IL
 38.55°N 90.04°W (Elev. 538 ft)
Last Update:
5:21 am CDT Apr 7, 2026
Forecast Valid:
7am CDT Apr 7, 2026-6pm CDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation