Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

30°F

-1°C

Humidity 88%
Wind Speed Calm
Barometer 30.30 in (1026.5 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 12 Feb 7:53 am CST
Extended Forecast for

Madison IL

  • Today

    Today: Partly sunny, with a high near 55. South wind 3 to 8 mph.

    High: 55 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 33. Southeast wind 5 to 7 mph.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 60. South wind 3 to 6 mph.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 38. Light south wind.

    Low: 38 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain likely, mainly after noon.  Cloudy, with a high near 52. Calm wind becoming southeast 5 to 7 mph in the morning.  Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight.  Cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Rain Likely

  • Sunday

    Sunday: A 30 percent chance of rain before noon.  Mostly sunny, with a high near 59.

    High: 59 °F

    Chance Rain
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 55. South wind 3 to 8 mph.
Tonight
Partly cloudy, with a low around 33. Southeast wind 5 to 7 mph.
Friday
Sunny, with a high near 60. South wind 3 to 6 mph.
Friday Night
Increasing clouds, with a low around 38. Light south wind.
Saturday
Rain likely, mainly after noon. Cloudy, with a high near 52. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 60%.
Saturday Night
Rain likely, mainly before midnight. Cloudy, with a low around 44. Chance of precipitation is 70%.
Sunday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 36.
Washington's Birthday
Mostly sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly cloudy, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Madison IL
 38.68°N 90.14°W (Elev. 407 ft)
6:36 am CST Feb 12, 2026
8am CST Feb 12, 2026-6pm CST Feb 18, 2026
 
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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