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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Madison IL

  • This Afternoon

    This Afternoon: Showers and thunderstorms, mainly before 4pm. High near 61. Light and variable wind. Chance of precipitation is 80%.

    High: 61 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Patchy fog after 9pm. Low around 55. Light and variable wind. Chance of precipitation is 80%.

    Low: 55 °F

    T-storms and
    Patchy Fog

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 9am, then isolated showers between 9am and 10am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 68. West wind 3 to 8 mph. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely and
    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Scattered showers before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 58. Calm wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

  • Friday

    Friday: A 20 percent chance of rain. Partly sunny, with a high near 80. South wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 80 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight. Low around 58. Chance of precipitation is 90%.

    Low: 58 °F

    Chance
    T-storms then
    Rain

  • Saturday

    Saturday: A 50 percent chance of rain before noon. Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and thunderstorms, mainly before 4pm. High near 61. Light and variable wind. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Patchy fog after 9pm. Low around 55. Light and variable wind. Chance of precipitation is 80%.
Thursday
Showers likely and possibly a thunderstorm before 9am, then isolated showers between 9am and 10am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 68. West wind 3 to 8 mph. Chance of precipitation is 60%.
Thursday Night
Scattered showers before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 58. Calm wind becoming south 5 to 7 mph after midnight. Chance of precipitation is 60%.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 80. South wind 8 to 16 mph, with gusts as high as 26 mph.
Friday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight. Low around 58. Chance of precipitation is 90%.
Saturday
A 50 percent chance of rain before noon. Mostly cloudy, with a high near 68.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 78.
Monday Night
A 40 percent chance of rain and thunderstorms. Partly cloudy, with a low around 61.
Tuesday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Madison IL
 38.68°N 90.14°W (Elev. 407 ft)
Last Update:
12:26 pm CST Mar 4, 2026
Forecast Valid:
1pm CST Mar 4, 2026-6pm CDT Mar 10, 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