Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Partly Cloudy
41°F
5°C
| Humidity | 62% |
| Wind Speed | NE 16 G 23 mph |
| Barometer | 30.38 in (1028.9 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 33°F (1°C) |
| Last update | 23 Mar 8:53 am CDT |
Extended Forecast for
Madison IL
Today
High: 55 °F
Mostly Sunny
Tonight
Low: 38 °F
Chance
SprinklesTuesday
High: 63 °F
Mostly Sunny
Tuesday Night
Low: 42 °F
Partly Cloudy
Wednesday
High: 76 °F
Mostly Sunny
Wednesday Night
Low: 61 °F
Mostly Clear
Thursday
High: 90 °F
Sunny
Thursday Night
Low: 44 °F
Showers
LikelyFriday
High: 53 °F
Chance
Showers
Detailed Forecast
Today
Mostly sunny, with a high near 55. North wind 9 to 11 mph.
Tonight
A chance of sprinkles after 2am. Mostly cloudy, with a low around 38. East wind around 7 mph.
Tuesday
Mostly sunny, with a high near 63. Southeast wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 42. Southeast wind around 6 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 76. Calm wind becoming south 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 90.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Friday
A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 53.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Mostly sunny, with a high near 65.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Madison IL
38.68°N 90.14°W (Elev. 407 ft)
38.68°N 90.14°W (Elev. 407 ft)
7:26 am CDT Mar 23, 2026
9am CDT Mar 23, 2026-6pm CDT Mar 29, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
