Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
93°F
34°C
| Humidity | 56% |
| Wind Speed | S 10 mph |
| Barometer | 29.93 in (1013.1 mb) |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 105°F (41°C) |
| Last update | 20 Jul 2:53 pm CDT |
Extended Forecast for
Madison IL
Flood Watch July 20, 05:00pm until July 21, 01:00pm
Extreme Heat Warning July 20, 04:51pm until July 24, 07:00pm
NOW until 7:00pm Thu
Extreme Heat Warning
This Afternoon
High: 96 °F
Slight Chance
T-stormsTonight
Low: 76 °F
Chance
T-stormsMonday
High: 93 °F
Chance
T-storms then
Chance
ShowersMonday Night
Low: 77 °F
Slight Chance
T-stormsTuesday
High: 97 °F
Hot
Tuesday Night
Low: 78 °F
Mostly Clear
Wednesday
High: 99 °F
Hot
Wednesday Night
Low: 79 °F
Mostly Clear
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 96. Heat index values as high as 103. Southwest wind around 8 mph.
Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Monday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 93. Heat index values as high as 103. Calm wind becoming southeast around 6 mph in the morning.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. East wind around 6 mph becoming calm after midnight.
Tuesday
Mostly sunny and hot, with a high near 97. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Mostly sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 79.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 98.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Madison IL
38.68°N 90.17°W (Elev. 407 ft)
38.68°N 90.17°W (Elev. 407 ft)
4:21 pm CDT Jul 20, 2025
4pm CDT Jul 20, 2025-6pm CDT Jul 27, 2025
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