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.

Partly Cloudy

88°F

31°C

Humidity 46%
Wind Speed S 15 G 25 mph
Barometer 29.81 in (1009.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 14 Apr 3:53 pm CDT
Extended Forecast for

2 Miles WNW Belleville IL

  • Tonight

    Tonight: Isolated showers and thunderstorms before 8pm, then isolated showers and thunderstorms after 3am. Increasing clouds, with a low around 70. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Isolated
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 81. South wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 81 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 64. Southwest wind 8 to 10 mph. Chance of precipitation is 80%.

    Low: 64 °F

    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 80. Southwest wind 8 to 10 mph. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. South wind 3 to 6 mph.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Isolated showers and thunderstorms before 8pm, then isolated showers and thunderstorms after 3am. Increasing clouds, with a low around 70. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday
Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 81. South wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Wednesday Night
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 64. Southwest wind 8 to 10 mph. Chance of precipitation is 80%.
Thursday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 80. Southwest wind 8 to 10 mph. Chance of precipitation is 70%.
Thursday Night
Mostly clear, with a low around 61. South wind 3 to 6 mph.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 62.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 73.
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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:
4:46 pm CDT Apr 14, 2026
Forecast Valid:
4pm CDT Apr 14, 2026-6pm CDT Apr 21, 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