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 Rain and Breezy

42°F

6°C

Humidity 82%
Wind Speed W 23 G 36 mph
Barometer 29.52 in (999.4 mb)
Dewpoint 37°F (3°C)
Visibility 9.00 mi
Wind Chill32°F (0°C)
Last update 15 Mar 6:53 pm CDT
Extended Forecast for

Madison IL

Wind Advisory March 15, 07:29pm until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 15, 07:29pm until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Tonight

    Low: 23 °F

    Rain/Snow and
    Breezy then
    Chance Snow
    and Blustery

  • Monday

    Monday: A slight chance of snow before noon, then scattered flurries between noon and 1pm. Cloudy, with a high near 29. Blustery, with a northwest wind 21 to 23 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.

    High: 29 °F

    Blustery.
    Slight Chance
    Snow then
    Scattered
    Flurries

  • 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 around 7 mph becoming southwest in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Southeast wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of rain and snow before 7am. Mostly sunny, with a high near 63. Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Rain/Snow
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Tonight
Rain before 10pm, then rain and snow likely between 10pm and 11pm, then a chance of snow after 11pm. Low around 23. Blustery, with a west wind around 23 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Monday
A slight chance of snow before noon, then scattered flurries between noon and 1pm. Cloudy, with a high near 29. Blustery, with a northwest wind 21 to 23 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.
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 around 7 mph becoming southwest in the afternoon.
Tuesday Night
A chance of snow before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Southeast wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday
A chance of rain and snow before 7am. Mostly sunny, with a high near 63. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Mostly sunny, with a high near 75.
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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:
6:51 pm CDT Mar 15, 2026
Forecast Valid:
7pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation