Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

12°F

-11°C

Humidity 67%
Wind Speed W 6 mph
Barometer 30.23 in (1024.4 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill2°F (-17°C)
Last update 18 Jan 3:53 am CST
Extended Forecast for

Cahokia IL

  • Today

    Today: Increasing clouds, with a high near 33. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 33 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 11. West wind 10 to 18 mph becoming northwest after midnight. Winds could gust as high as 33 mph.

    Low: 11 °F

    Gradual
    Clearing

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 23. Northwest wind 8 to 17 mph, with gusts as high as 29 mph.

    High: 23 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11. West wind 5 to 7 mph becoming calm.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. South wind 5 to 9 mph.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 33. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 11. West wind 10 to 18 mph becoming northwest after midnight. Winds could gust as high as 33 mph.
M.L.King Day
Sunny, with a high near 23. Northwest wind 8 to 17 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 11. West wind 5 to 7 mph becoming calm.
Tuesday
Mostly sunny, with a high near 39. South wind 5 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 27.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 46.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
Cahokia IL
 38.57°N 90.18°W (Elev. 407 ft)
3:16 am CST Jan 18, 2026
4am CST Jan 18, 2026-6pm CST Jan 24, 2026
 
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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