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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles SSE Belleville IL

  • Today

    Today: A slight chance of drizzle before 5pm. Cloudy, with a high near 42. East wind 7 to 9 mph.

    High: 42 °F

    Slight Chance
    Drizzle

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 39. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.

    Low: 39 °F

    Cloudy then
    Showers

  • Tuesday

    Tuesday: Rain before noon, then a chance of showers and thunderstorms between noon and 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 62. South wind 3 to 6 mph. Chance of precipitation is 90%.

    High: 62 °F

    Rain then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, with thunderstorms also possible after 9pm. Mostly cloudy, with a low around 55. South wind around 6 mph. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 69. Southwest wind 6 to 9 mph. Chance of precipitation is 80%.

    High: 69 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 56. Chance of precipitation is 80%.

    Low: 56 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 50%.

    High: 78 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Today
A slight chance of drizzle before 5pm. Cloudy, with a high near 42. East wind 7 to 9 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 39. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.
Tuesday
Rain before noon, then a chance of showers and thunderstorms between noon and 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 62. South wind 3 to 6 mph. Chance of precipitation is 90%.
Tuesday Night
Showers likely, with thunderstorms also possible after 9pm. Mostly cloudy, with a low around 55. South wind around 6 mph. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm. High near 69. Southwest wind 6 to 9 mph. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 56. Chance of precipitation is 80%.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Thursday Night
A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Saturday
Showers likely. Cloudy, with a high near 68. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 47.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 65.
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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:
9:47 am CST Mar 2, 2026
Forecast Valid:
10am CST Mar 2, 2026-6pm CDT Mar 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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