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.

Fog/Mist

32°F

0°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in (1017.1 mb)
Dewpoint 32°F (0°C)
Visibility 6.00 mi
Last update 16 Feb 4:53 am CST
Extended Forecast for

Scott Air Force Base / Belleville IL

Dense Fog Advisory February 16, 05:07am until February 16, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory February 16, 05:07am until February 16, 09:00am

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Washington's Birthday

    High: 66 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 41. South wind 6 to 9 mph.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. South wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after midnight. Cloudy, then gradually becoming partly cloudy, with a low around 55. South wind 15 to 18 mph, with gusts as high as 31 mph.

    Low: 55 °F

    Cloudy then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 74. West wind 8 to 15 mph, with gusts as high as 28 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 73. Chance of precipitation is 40%.

    High: 73 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Mostly clear, with a low around 38.

    Low: 38 °F

    Slight Chance
    Showers then
    Mostly Clear

Detailed Forecast

Washington's Birthday
Mostly sunny, with a high near 66. Light south wind increasing to 6 to 11 mph in the morning.
Tonight
Partly cloudy, with a low around 41. South wind 6 to 9 mph.
Tuesday
Mostly cloudy, with a high near 65. South wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Tuesday Night
A 20 percent chance of showers after midnight. Cloudy, then gradually becoming partly cloudy, with a low around 55. South wind 15 to 18 mph, with gusts as high as 31 mph.
Wednesday
Sunny, with a high near 74. West wind 8 to 15 mph, with gusts as high as 28 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 45.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 73. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 38.
Friday
Mostly sunny, with a high near 53.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 31.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 50.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 29.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Scott Air Force Base / Belleville IL
 38.54°N 89.84°W (Elev. 417 ft)
Last Update:
4:56 am CST Feb 16, 2026
Forecast Valid:
5am CST Feb 16, 2026-6pm CST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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