Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
54°F
12°C
| Humidity | 57% |
| Wind Speed | N 20 G 26 mph |
| Barometer | 29.99 in (1015.3 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 49°F (9°C) |
| Last update | 22 Mar 8:53 pm CDT |
Extended Forecast for
Madison IL
Tonight

Low: 37 °F
Mostly Clear
Monday

High: 56 °F
Mostly Sunny
Monday Night

Low: 38 °F
Mostly Cloudy
Tuesday

High: 64 °F
Mostly Sunny
Tuesday Night

Low: 44 °F
Partly Cloudy
Wednesday

High: 77 °F
Mostly Sunny
Wednesday Night

Low: 61 °F
Partly Cloudy
Thursday

High: 90 °F
Sunny
Thursday Night
Low: 42 °F
Chance
T-storms then
Rain Likely
Detailed Forecast
Tonight
Mostly clear, with a low around 37. North wind 14 to 17 mph, with gusts as high as 32 mph.
Monday
Mostly sunny, with a high near 56. Northeast wind 8 to 14 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 38. East wind around 6 mph.
Tuesday
Mostly sunny, with a high near 64. Southeast wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 44. South wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Sunny, with a high near 90.
Thursday Night
A chance of rain and thunderstorms, then rain likely after 1am. Partly cloudy, with a low around 42. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Partly sunny, with a high near 67.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Madison IL
38.68°N 90.14°W (Elev. 407 ft)
38.68°N 90.14°W (Elev. 407 ft)
5:46 pm CDT Mar 22, 2026
9pm CDT Mar 22, 2026-6pm CDT Mar 29, 2026



