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

16°F

-9°C

Humidity 51%
Wind Speed NW 15 G 24 mph
Barometer 30.36 in (1028.5 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 19 Jan 7:53 am CST
Extended Forecast for

2 Miles SE Cahokia IL

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 22. Blustery, with a northwest wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 22 °F

    Sunny and
    Blustery then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 13. West wind around 6 mph becoming light and variable.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. South wind 5 to 8 mph.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 29. South wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 29 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. West wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 28.

    High: 28 °F

    Mostly Cloudy

Detailed Forecast

M.L.King Day
Sunny, with a high near 22. Blustery, with a northwest wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 29 mph.
Tonight
Mostly clear, with a low around 13. West wind around 6 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 39. South wind 5 to 8 mph.
Tuesday Night
Increasing clouds, with a low around 29. South wind 8 to 13 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 46. West wind 7 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 24.
Thursday
Sunny, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly cloudy, with a high near 28.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 3.
Saturday
A 20 percent chance of snow. Mostly cloudy and cold, with a high near 15.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 26.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Cahokia IL
 38.53°N 90.15°W (Elev. 499 ft)
Last Update:
7:47 am CST Jan 19, 2026
Forecast Valid:
8am CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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