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.

Light Snow

35°F

2°C

Humidity 67%
Wind Speed SE 7 mph
Barometer 29.95 in (1014.5 mb)
Dewpoint 25°F (-4°C)
Visibility 6.00 mi
Wind Chill29°F (-2°C)
Last update 11 Dec 3:53 pm CST
Extended Forecast for

Scott Air Force Base / Belleville IL

  • This Afternoon

    This Afternoon: A 30 percent chance of snow, mainly before 5pm. Cloudy, with a high near 37. Southeast wind around 7 mph.

    High: 37 °F

    Chance Snow

  • Tonight

    Tonight: Scattered flurries before 7pm. Mostly cloudy, with a low around 30. Southeast wind 5 to 9 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Scattered
    Flurries

  • Friday

    Friday: Mostly cloudy, with a high near 39. Northwest wind 8 to 11 mph.

    High: 39 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22. Northwest wind around 6 mph.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of snow after noon. Mostly cloudy, with a high near 27. North wind 6 to 10 mph.

    High: 27 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 4.

    Low: 4 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and cold, with a high near 15.

    High: 15 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of snow, mainly before 5pm. Cloudy, with a high near 37. Southeast wind around 7 mph.
Tonight
Scattered flurries before 7pm. Mostly cloudy, with a low around 30. Southeast wind 5 to 9 mph becoming north after midnight. Winds could gust as high as 20 mph.
Friday
Mostly cloudy, with a high near 39. Northwest wind 8 to 11 mph.
Friday Night
Mostly cloudy, with a low around 22. Northwest wind around 6 mph.
Saturday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 27. North wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 4.
Sunday
Sunny and cold, with a high near 15.
Sunday Night
Mostly clear, with a low around 7.
Monday
Sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 41.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Scott Air Force Base / Belleville IL
 38.54°N 89.84°W (Elev. 417 ft)
Last Update:
3:15 pm CST Dec 11, 2025
Forecast Valid:
4pm CST Dec 11, 2025-6pm CST Dec 18, 2025
 
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Additional Resources

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Chance of Precipitation