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

20°F

-7°C

Humidity 96%
Wind Speed SE 3 mph
Barometer 30.09 in (1019.5 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 3 Dec 1:53 am CST
Extended Forecast for

2 Miles SSE Belleville IL

  • Overnight

    Overnight: Partly cloudy, with a low around 19. South wind 3 to 6 mph.

    Low: 19 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of sprinkles between 4pm and 5pm, then a slight chance of rain and snow after 5pm. Increasing clouds, with a high near 40. South wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 20%.

    High: 40 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow, mainly before 1am. Cloudy, with a low around 15. Light north wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 21 mph.

    Low: 15 °F

    Chance Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 24. North wind 5 to 9 mph becoming light in the afternoon.

    High: 24 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13. Calm wind.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 19. South wind 3 to 6 mph.
Wednesday
A chance of sprinkles between 4pm and 5pm, then a slight chance of rain and snow after 5pm. Increasing clouds, with a high near 40. South wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 20%.
Wednesday Night
A 40 percent chance of snow, mainly before 1am. Cloudy, with a low around 15. Light north wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 21 mph.
Thursday
Mostly sunny, with a high near 24. North wind 5 to 9 mph becoming light in the afternoon.
Thursday Night
Partly cloudy, with a low around 13. Calm wind.
Friday
Mostly sunny, with a high near 40.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 38.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Partly sunny, with a high near 36.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...
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:
2:40 am CST Dec 3, 2025
Forecast Valid:
2am CST Dec 3, 2025-6pm CST Dec 9, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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