Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
95°F
35°C
| Humidity | 63% |
| Wind Speed | SW 6 mph |
| Barometer | 29.90 in |
| Dewpoint | 81°F (27°C) |
| Visibility | 10.00 mi |
| Heat Index | 116°F (47°C) |
| Last update | 26 Jul 2:52 pm CDT |
Extended Forecast for
Dowell IL
Extreme Heat Warning until July 28, 07:00pm
NOW until 7:00pm Tue

Extreme Heat Warning
This Afternoon

High: 96 °F
Slight Chance
T-stormsTonight
Low: 77 °F
Showers
Likely then
Slight Chance
T-stormsMonday

High: 99 °F
Hot
Monday Night

Low: 79 °F
Mostly Clear
Tuesday

High: 95 °F
Mostly Sunny
Tuesday Night
Low: 71 °F
Slight Chance
T-storms then
Slight Chance
ShowersWednesday

High: 90 °F
Sunny
Wednesday Night

Low: 66 °F
Clear
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96. Heat index values as high as 113. Light west southwest wind.
Tonight
Showers and thunderstorms likely, mainly before midnight. Partly cloudy, with a low around 77. Calm wind. Chance of precipitation is 60%.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 114. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 79. West southwest wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 95. North northwest wind 6 to 9 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 71. North wind 3 to 8 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 90. North wind 3 to 8 mph.
Wednesday Night
Clear, with a low around 66. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90. Calm wind becoming east northeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 67. East northeast wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. South southwest wind around 6 mph becoming calm in the evening.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming north 5 to 9 mph in the morning.
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ABOUT THIS FORECAST
Point Forecast:
Dowell IL
37.95°N 89.25°W
37.95°N 89.25°W
1:21 pm CDT Jul 26, 2026
3pm CDT Jul 26, 2026-6pm CDT Aug 1, 2026



