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.

Fair

74°F

23°C

Humidity 20%
Wind Speed W 13 G 22 mph
Barometer 29.88 in (1011.7 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 27 Feb 1:53 pm CST
Extended Forecast for

Scott Air Force Base / Belleville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 72. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. Southwest wind 5 to 8 mph becoming north after midnight.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 66. North wind 5 to 10 mph becoming south in the afternoon.

    High: 66 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. South wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 22 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 46. Northeast wind around 11 mph.

    High: 46 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain and snow. Low around 33. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow

  • Monday

    Monday: A 40 percent chance of rain, mainly before noon. Cloudy, with a high near 47.

    High: 47 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm. High near 59. Chance of precipitation is 80%.

    High: 59 °F

    Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 72. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 37. Southwest wind 5 to 8 mph becoming north after midnight.
Saturday
Increasing clouds, with a high near 66. North wind 5 to 10 mph becoming south in the afternoon.
Saturday Night
Partly cloudy, with a low around 31. South wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 22 mph.
Sunday
Mostly cloudy, with a high near 46. Northeast wind around 11 mph.
Sunday Night
Rain and snow. Low around 33. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday
A 40 percent chance of rain, mainly before noon. Cloudy, with a high near 47.
Monday Night
Rain likely, mainly after midnight. Cloudy, with a low around 39. Chance of precipitation is 60%.
Tuesday
Rain and possibly a thunderstorm. High near 59. Chance of precipitation is 80%.
Tuesday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 46. Chance of precipitation is 70%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 63. Chance of precipitation is 70%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Thursday
Rain likely. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.
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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:
1:36 pm CST Feb 27, 2026
Forecast Valid:
2pm CST Feb 27, 2026-6pm CST Mar 5, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation