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.

Overcast

32°F

0°C

Humidity 47%
Wind Speed NW 15 G 30 mph
Barometer 29.93 in (1013.7 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 16 Jan 10:53 pm CST
Extended Forecast for

Madison IL

  • Tonight

    Tonight: A 20 percent chance of snow before 3am. Partly cloudy, with a low around 22. West wind 10 to 15 mph, with gusts as high as 28 mph.

    Low: 22 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: Partly sunny, with a high near 28. West wind 11 to 17 mph, with gusts as high as 24 mph.

    High: 28 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 12. West wind 6 to 13 mph.

    Low: 12 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Increasing clouds, with a high near 34. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 34 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 14. West wind 7 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

    Low: 14 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 24.

    High: 24 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of snow before 3am. Partly cloudy, with a low around 22. West wind 10 to 15 mph, with gusts as high as 28 mph.
Saturday
Partly sunny, with a high near 28. West wind 11 to 17 mph, with gusts as high as 24 mph.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 12. West wind 6 to 13 mph.
Sunday
Increasing clouds, with a high near 34. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 14. West wind 7 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
M.L.King Day
Sunny, with a high near 24.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Partly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 37.
Thursday Night
A chance of rain or freezing rain. Partly cloudy, with a low around 24. Chance of precipitation is 30%.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Madison IL
 38.68°N 90.14°W (Elev. 407 ft)
Last Update:
9:56 pm CST Jan 16, 2026
Forecast Valid:
11pm CST Jan 16, 2026-6pm CST Jan 23, 2026
 
Forecast Discussion
 
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