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

39°F

4°C

Humidity 50%
Wind Speed Vrbl 5 mph
Barometer 30.69 in (1039.4 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 28 Mar 9:53 am CDT
Extended Forecast for

2 Miles SSE Belleville IL

  • Today

    Today: Sunny, with a high near 57. East wind 5 to 7 mph becoming south in the afternoon.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. South wind around 6 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 68. South wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South wind around 11 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81. South wind 10 to 17 mph, with gusts as high as 28 mph.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Slight Chance
    Rain then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 1pm. Cloudy, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 57. East wind 5 to 7 mph becoming south in the afternoon.
Tonight
Mostly clear, with a low around 38. South wind around 6 mph.
Sunday
Partly sunny, with a high near 68. South wind 6 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 56. South wind around 11 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 81. South wind 10 to 17 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Wednesday
Rain likely, mainly before 1pm. Cloudy, with a high near 57. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Thursday
Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 44.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Belleville IL
 38.5°N 89.98°W (Elev. 495 ft)
Last Update:
8:16 am CDT Mar 28, 2026
Forecast Valid:
10am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation