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 and Breezy

22°F

-6°C

Humidity 50%
Wind Speed W 24 G 36 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 29 Dec 1:53 am CST
Extended Forecast for

2 Miles SE Cahokia IL

Wind Advisory until December 29, 06:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 29, 06:00am

    NOW until 6:00am Mon

    Wind Advisory

  • Overnight

    Low: 17 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 28. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 36 mph.

    High: 28 °F

    Decreasing
    Clouds and
    Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. Northwest wind 6 to 14 mph, with gusts as high as 24 mph.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 37. West wind 6 to 8 mph.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 29. West wind 6 to 8 mph.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 17. Breezy, with a west wind around 26 mph, with gusts as high as 39 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 28. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 36 mph.
Monday Night
Mostly clear, with a low around 19. Northwest wind 6 to 14 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 37. West wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 29. West wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 26.
New Year's Day
Mostly sunny, with a high near 41.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Cahokia IL
 38.53°N 90.15°W (Elev. 499 ft)
Last Update:
9:26 pm CST Dec 28, 2025
Forecast Valid:
2am CST Dec 29, 2025-6pm CST Jan 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation