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

64°F

18°C

Humidity 90%
Wind Speed SE 5 mph
Barometer 30.05 in (1017.2 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 5 Oct 11:53 pm CDT
Extended Forecast for

Scott Air Force Base / Belleville IL

  • Overnight

    Overnight: Mostly clear, with a low around 62. Southeast wind around 5 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Isolated showers, then scattered showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 5 to 9 mph. Chance of precipitation is 40%.

    High: 85 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 5 to 7 mph becoming calm in the evening.

    Low: 65 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 76. Light west wind becoming north 6 to 11 mph in the morning. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. North wind 7 to 10 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 62. Southeast wind around 5 mph.
Monday
Isolated showers, then scattered showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 5 to 9 mph. Chance of precipitation is 40%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 5 to 7 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 76. Light west wind becoming north 6 to 11 mph in the morning. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 52. North wind 7 to 10 mph.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 46.
Friday
Mostly sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 81.
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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:
10:41 pm CDT Oct 5, 2025
Forecast Valid:
12am CDT Oct 6, 2025-6pm CDT Oct 12, 2025
 
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