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Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
48°F
9°C
| Humidity | 36% |
| Wind Speed | SW 12 G 18 mph |
| Barometer | 30.07 in (1018.5 mb) |
| Dewpoint | 22°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 43°F (6°C) |
| Last update | 21 Jan 11:53 am CST |
Extended Forecast for
Madison IL
This Afternoon

High: 47 °F
Sunny
Tonight

Low: 24 °F
Mostly Clear
Thursday

High: 39 °F
Mostly Sunny
Thursday Night

Low: 9 °F
Mostly Cloudy
Friday

High: 16 °F
Cold
Friday Night

Low: 2 °F
Cloudy
Saturday

High: 14 °F
Chance Snow
Saturday Night
Low: 8 °F
Chance Snow
then Slight
Chance SnowSunday
High: 21 °F
Slight Chance
Snow then
Partly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 47. West wind 9 to 13 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 24. Southwest wind 5 to 11 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
Thursday
Mostly sunny, with a high near 39. West wind 3 to 5 mph.
Thursday Night
Mostly cloudy, with a low around 9. Light northwest wind becoming north 10 to 15 mph after midnight. Winds could gust as high as 24 mph.
Friday
Mostly cloudy and cold, with a high near 16. North wind 11 to 14 mph, with gusts as high as 24 mph.
Friday Night
Cloudy, with a low around 2.
Saturday
A 50 percent chance of snow. Cloudy and cold, with a high near 14.
Saturday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 8.
Sunday
A 20 percent chance of snow before noon. Partly sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Sunny, with a high near 24.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 37.
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)
10:57 am CST Jan 21, 2026
12pm CST Jan 21, 2026-6pm CST Jan 27, 2026


