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

  • Tonight

    Tonight: A 40 percent chance of rain and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 57. Calm wind becoming southeast around 6 mph after midnight.

    Low: 57 °F

    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of rain and thunderstorms before 8am.  Partly sunny, with a high near 76. South wind 7 to 16 mph, with gusts as high as 28 mph.

    High: 76 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm, mainly after midnight.  Low around 60. South wind 11 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 90%.

    Low: 60 °F

    Slight Chance
    Rain then
    Rain

  • Saturday

    Saturday: A 50 percent chance of rain and thunderstorms before noon.  Mostly cloudy, with a high near 70. Southwest wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 70 °F

    Chance Rain
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. Northwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of rain, then a chance of rain and thunderstorms after midnight.  Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance Rain

Detailed Forecast

Tonight
A 40 percent chance of rain and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 57. Calm wind becoming southeast around 6 mph after midnight.
Friday
A 20 percent chance of rain and thunderstorms before 8am. Partly sunny, with a high near 76. South wind 7 to 16 mph, with gusts as high as 28 mph.
Friday Night
Rain and possibly a thunderstorm, mainly after midnight. Low around 60. South wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Saturday
A 50 percent chance of rain and thunderstorms before noon. Mostly cloudy, with a high near 70. Southwest wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 41. Northwest wind 5 to 7 mph becoming calm after midnight.
Sunday
Sunny, with a high near 68.
Sunday Night
Clear, with a low around 51.
Monday
Sunny, with a high near 80.
Monday Night
A slight chance of rain, then a chance of rain and thunderstorms after midnight. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Tuesday
Rain likely and possibly a thunderstorm. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 56. Chance of precipitation is 90%.
Wednesday
Rain likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 37.
Thursday
Sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Madison IL
 38.68°N 90.14°W (Elev. 407 ft)
5:10 pm CST Mar 5, 2026
8pm CST Mar 5, 2026-6pm CDT Mar 12, 2026
 
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Additional Resources

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