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.

Heavy Rain Fog/Mist

64°F

18°C

Humidity 90%
Wind Speed NW 7 mph
Barometer 29.91 in (1012.4 mb)
Dewpoint 61°F (16°C)
Visibility 3.00 mi
Last update 4 Apr 5:53 am CDT
Extended Forecast for

2 Miles WNW Belleville IL

  • Today

    Today: Showers and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 2pm. Temperature falling to around 54 by 1pm. Southwest wind 10 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.

    High: 64 °F⇓

    Showers then
    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 40. Northwest wind 8 to 15 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 58. Northwest wind 7 to 11 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 40. West wind 3 to 6 mph.

    Low: 40 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62. Northwest wind 6 to 10 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 2pm. Temperature falling to around 54 by 1pm. Southwest wind 10 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 40. Northwest wind 8 to 15 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 58. Northwest wind 7 to 11 mph.
Sunday Night
Clear, with a low around 40. West wind 3 to 6 mph.
Monday
Sunny, with a high near 62. Northwest wind 6 to 10 mph.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 55.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Belleville IL
 38.55°N 90.04°W (Elev. 538 ft)
Last Update:
4:36 am CDT Apr 4, 2026
Forecast Valid:
6am CDT Apr 4, 2026-6pm CDT Apr 10, 2026
 
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