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

6°F

-14°C

Humidity 83%
Wind Speed Calm
Barometer 30.49 in (1033.3 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 31 Jan 10:53 pm CST
Extended Forecast for

2 Miles WNW Belleville IL

  • Overnight

    Overnight: Mostly clear, with a low around 0. West wind 3 to 5 mph.

    Low: 0 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of snow, mainly after 4pm. Increasing clouds, with a high near 29. Light and variable wind becoming south 5 to 8 mph in the morning.

    High: 29 °F

    Partly Sunny
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow, mainly before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 18. South wind 5 to 7 mph becoming light and variable after midnight.

    Low: 18 °F

    Chance Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 38. West wind around 5 mph becoming calm in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 27. Light east wind.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33.

    High: 33 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 0. West wind 3 to 5 mph.
Sunday
A 30 percent chance of snow, mainly after 4pm. Increasing clouds, with a high near 29. Light and variable wind becoming south 5 to 8 mph in the morning.
Sunday Night
A 40 percent chance of snow, mainly before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 18. South wind 5 to 7 mph becoming light and variable after midnight.
Monday
Mostly sunny, with a high near 38. West wind around 5 mph becoming calm in the afternoon.
Monday Night
Mostly cloudy, with a low around 27. Light east wind.
Tuesday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
Mostly sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Mostly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 36.
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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:
10:57 pm CST Jan 31, 2026
Forecast Valid:
12am CST Feb 1, 2026-6pm CST Feb 7, 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