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.

A Few Clouds

29°F

-2°C

Humidity 72%
Wind Speed NW 12 mph
Barometer 30.37 in (1028.7 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 27 Nov 6:53 am CST
Extended Forecast for

Scott Air Force Base / Belleville IL

  • Thanksgiving Day

    Thanksgiving Day: Cloudy through mid morning, then gradual clearing, with a high near 43. Northwest wind 8 to 14 mph.

    High: 43 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Clear, with a low around 23. West wind 5 to 8 mph.

    Low: 23 °F

    Clear

  • Friday

    Friday: Increasing clouds, with a high near 40. Light and variable wind.

    High: 40 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Snow likely, mainly after 3am. Cloudy, with a low around 29. Calm wind becoming southeast 5 to 9 mph in the evening. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 29 °F

    Cloudy then
    Snow Likely

  • Saturday

    Saturday: Snow before noon, then rain, possibly mixed with snow. High near 38. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 38 °F

    Snow then
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Cloudy, with a low around 27. Chance of precipitation is 70%.

    Low: 27 °F

    Rain Likely
    then Slight
    Chance Rain

  • Sunday

    Sunday: Mostly cloudy, with a high near 33.

    High: 33 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

Detailed Forecast

Thanksgiving Day
Cloudy through mid morning, then gradual clearing, with a high near 43. Northwest wind 8 to 14 mph.
Tonight
Clear, with a low around 23. West wind 5 to 8 mph.
Friday
Increasing clouds, with a high near 40. Light and variable wind.
Friday Night
Snow likely, mainly after 3am. Cloudy, with a low around 29. Calm wind becoming southeast 5 to 9 mph in the evening. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Saturday
Snow before noon, then rain, possibly mixed with snow. High near 38. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Rain likely, mainly before midnight. Cloudy, with a low around 27. Chance of precipitation is 70%.
Sunday
Mostly cloudy, with a high near 33.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
Mostly cloudy, with a high near 29.
Monday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 42.
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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:
6:31 am CST Nov 27, 2025
Forecast Valid:
7am CST Nov 27, 2025-6pm CST Dec 3, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation