National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

77°F

25°C

Humidity 54%
Wind Speed SW 12 G 17 mph
Barometer 29.67 in (1004.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 15 Nov 11:53 am CST
Extended Forecast for

3 Miles SE Belleville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. West wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. North wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. North wind 5 to 9 mph becoming light in the afternoon.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. Light and variable wind.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 59. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 59 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers likely before 9pm, then showers likely and possibly a thunderstorm between 9pm and 3am, then showers likely after 3am. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 63.

    High: 63 °F

    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 80. West wind 10 to 13 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 44. North wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 59. North wind 5 to 9 mph becoming light in the afternoon.
Sunday Night
Mostly clear, with a low around 34. Light and variable wind.
Monday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 59. Light east wind becoming southeast 5 to 10 mph in the morning.
Monday Night
Showers likely before 9pm, then showers likely and possibly a thunderstorm between 9pm and 3am, then showers likely after 3am. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 46.
Wednesday
A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 63.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Thursday
Rain and possibly a thunderstorm. High near 64. Chance of precipitation is 80%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Belleville IL
 38.5°N 89.98°W (Elev. 495 ft)
Last Update:
10:42 am CST Nov 15, 2025
Forecast Valid:
12pm CST Nov 15, 2025-6pm CST Nov 21, 2025
 
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