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.

Light Snow

25°F

-4°C

Humidity 58%
Wind Speed NW 20 G 31 mph
Barometer 30.15 in (1021.6 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 16 Mar 8:53 pm CDT
Extended Forecast for

Scott Air Force Base / Belleville IL

  • Tonight

    Tonight: Scattered flurries before 10pm. Cloudy early, then gradual clearing, with a low around 16. Northwest wind 13 to 16 mph, with gusts as high as 28 mph.

    Low: 16 °F

    Scattered
    Flurries

  • Tuesday

    Tuesday: Increasing clouds, with a high near 35. Northwest wind 6 to 10 mph becoming southwest in the afternoon.

    High: 35 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of snow before 4am, then a slight chance of rain. Cloudy, with a low around 31. Southeast wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 63. South wind 9 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 63 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43. South wind 3 to 5 mph.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered flurries before 10pm. Cloudy early, then gradual clearing, with a low around 16. Northwest wind 13 to 16 mph, with gusts as high as 28 mph.
Tuesday
Increasing clouds, with a high near 35. Northwest wind 6 to 10 mph becoming southwest in the afternoon.
Tuesday Night
A chance of snow before 4am, then a slight chance of rain. Cloudy, with a low around 31. Southeast wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 63. South wind 9 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Mostly cloudy, with a low around 43. South wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Scott Air Force Base / Belleville IL
 38.52°N 89.84°W (Elev. 427 ft)
Last Update:
8:56 pm CDT Mar 16, 2026
Forecast Valid:
9pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026
 
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Additional Resources

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