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.

Light Snow and Breezy

31°F

-1°C

Humidity 69%
Wind Speed NW 21 G 37 mph
Barometer 29.75 in (1007.5 mb)
Dewpoint 22°F (-6°C)
Visibility 9.00 mi
Wind Chill18°F (-8°C)
Last update 16 Mar 2:53 am CDT
Extended Forecast for

2 Miles WNW Belleville IL

Wind Advisory March 16, 03:18am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 16, 03:18am until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Overnight

    Low: 22 °F

    Cloudy and
    Blustery

  • Monday

    Monday: A 30 percent chance of snow, mainly between 9am and 11am. Mostly cloudy, with a high near 28. Blustery, with a northwest wind 21 to 24 mph, with gusts as high as 37 mph.

    High: 28 °F

    Blustery.
    Chance Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15. Northwest wind 10 to 17 mph, with gusts as high as 26 mph.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36. Northwest wind 5 to 8 mph becoming southwest in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow before 1am, then a chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 32. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 32 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Overnight
Cloudy, with a low around 22. Blustery, with a northwest wind around 25 mph, with gusts as high as 37 mph.
Monday
A 30 percent chance of snow, mainly between 9am and 11am. Mostly cloudy, with a high near 28. Blustery, with a northwest wind 21 to 24 mph, with gusts as high as 37 mph.
Monday Night
Partly cloudy, with a low around 15. Northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 36. Northwest wind 5 to 8 mph becoming southwest in the afternoon.
Tuesday Night
A chance of snow before 1am, then a chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 32. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Belleville IL
 38.55°N 90.04°W (Elev. 538 ft)
Last Update:
2:06 am CDT Mar 16, 2026
Forecast Valid:
3am CDT Mar 16, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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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