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.

Mostly Cloudy

64°F

18°C

Humidity 75%
Wind Speed SW 9 mph
Barometer 29.67 in (1004.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 7 Nov 5:53 am CST
Extended Forecast for

Scott Air Force Base / Belleville IL

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 71. Southwest wind 8 to 14 mph becoming west in the afternoon.

    High: 71 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 42. West wind 5 to 7 mph becoming calm in the evening.

    Low: 42 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Partly sunny, with a high near 69. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph.

    High: 69 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 37. Northwest wind 7 to 16 mph.

    Low: 37 °F

    Chance Rain

  • Sunday

    Sunday: A slight chance of rain and snow between noon and 3pm, then a slight chance of snow after 3pm. Mostly sunny, with a high near 44. Northwest wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 71. Southwest wind 8 to 14 mph becoming west in the afternoon.
Tonight
Increasing clouds, with a low around 42. West wind 5 to 7 mph becoming calm in the evening.
Saturday
A 20 percent chance of rain after noon. Partly sunny, with a high near 69. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 37. Northwest wind 7 to 16 mph.
Sunday
A slight chance of rain and snow between noon and 3pm, then a slight chance of snow after 3pm. Mostly sunny, with a high near 44. Northwest wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Sunny, with a high near 43.
Monday Night
Mostly clear, with a low around 25.
Veterans Day
Mostly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 62.
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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:
5:11 am CST Nov 7, 2025
Forecast Valid:
5am CST Nov 7, 2025-6pm CST Nov 13, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation