Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

34°F

1°C

Humidity 76%
Wind Speed S 5 mph
Barometer 30.21 in (1023.2 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 13 Feb 6:53 am CST
Extended Forecast for

Madison IL

  • Today

    Today: Sunny, with a high near 61. South wind 5 to 8 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 40. South wind 3 to 6 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain, mainly after 10am.  High near 52. Southeast wind 3 to 8 mph.  Chance of precipitation is 90%.

    High: 52 °F

    Rain

  • Saturday Night

    Saturday Night: Rain.  Low around 45. Northeast wind around 6 mph.  Chance of precipitation is 90%.

    Low: 45 °F

    Rain

  • Sunday

    Sunday: A 20 percent chance of rain before noon.  Partly sunny, with a high near 59. Northeast wind 5 to 8 mph.

    High: 59 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 61. South wind 5 to 8 mph.
Tonight
Increasing clouds, with a low around 40. South wind 3 to 6 mph.
Saturday
Rain, mainly after 10am. High near 52. Southeast wind 3 to 8 mph. Chance of precipitation is 90%.
Saturday Night
Rain. Low around 45. Northeast wind around 6 mph. Chance of precipitation is 90%.
Sunday
A 20 percent chance of rain before noon. Partly sunny, with a high near 59. Northeast wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 39.
Washington's Birthday
Mostly sunny, with a high near 63.
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 56.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 48.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 65.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Madison IL
 38.68°N 90.14°W (Elev. 407 ft)
5:31 am CST Feb 13, 2026
7am CST Feb 13, 2026-6pm CST Feb 19, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database