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

74°F

23°C

Humidity 43%
Wind Speed S 3 mph
Barometer 29.78 in (1008.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 9 May 7:53 pm CDT
Extended Forecast for

2 Miles ESE Belleville IL

  • Tonight

    Tonight: Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am. Increasing clouds, with a low around 56. Light and variable wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 69. North wind around 8 mph.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming clear, with a low around 46. North wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 73. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Light and variable wind.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am. Increasing clouds, with a low around 56. Light and variable wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 69. North wind around 8 mph.
Sunday Night
Mostly cloudy, then gradually becoming clear, with a low around 46. North wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 73. Calm wind becoming northwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 50. Light and variable wind.
Tuesday
Sunny, with a high near 81.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 40%.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Clear, with a low around 50.
Thursday
Sunny, with a high near 75.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 56.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Belleville IL
 38.52°N 89.98°W (Elev. 509 ft)
Last Update:
5:56 pm CDT May 9, 2026
Forecast Valid:
8pm CDT May 9, 2026-6pm CDT May 16, 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