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Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

70°F

21°C

Humidity 76%
Wind Speed S 16 G 29 mph
Barometer 29.79 in (1008.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 2 Apr 8:53 am CDT
Extended Forecast for

Madison IL

Wind Advisory April 2, 12:00pm until April 2, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Breezy, with a south wind 20 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 70%.

    High: 73 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 4am, then a chance of showers. Partly cloudy, with a low around 64. South wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

  • Friday

    Friday: A slight chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83. South wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 59. South wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.

    Low: 59 °F

    Showers
    Likely then
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 60. West wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Breezy, with a south wind 20 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms likely before 4am, then a chance of showers. Partly cloudy, with a low around 64. South wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 70%.
Friday
A slight chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83. South wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday Night
Showers and possibly a thunderstorm. Low around 59. South wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 60. West wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Sunny, with a high near 60.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 71.
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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:
9:21 am CDT Apr 2, 2026
Forecast Valid:
10am CDT Apr 2, 2026-6pm CDT Apr 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation