Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
De Soto IL
Overnight

Low: 51 °F
Clear
Monday

High: 77 °F
Sunny
Monday Night

Low: 48 °F
Clear
Tuesday

High: 78 °F
Sunny
Tuesday Night

Low: 50 °F
Clear
Wednesday

High: 84 °F
Sunny
Wednesday Night

Low: 55 °F
Clear
Thursday

High: 82 °F
Sunny
Thursday Night

Low: 54 °F
Mostly Clear
Detailed Forecast
Overnight
Clear, with a low around 51. Light north wind.
Monday
Sunny, with a high near 77. Northeast wind 3 to 7 mph.
Monday Night
Clear, with a low around 48. Calm wind.
Tuesday
Sunny, with a high near 78. Light and variable wind.
Tuesday Night
Clear, with a low around 50. Calm wind.
Wednesday
Sunny, with a high near 84. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 55. Light and variable wind.
Thursday
Sunny, with a high near 82. Calm wind becoming northeast around 6 mph in the morning.
Thursday Night
Mostly clear, with a low around 54. Light east wind.
Friday
Sunny, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 55. Calm wind.
Saturday
Sunny, with a high near 83. Calm wind becoming south southeast 5 to 7 mph in the morning.
Saturday Night
Mostly clear, with a low around 57. Light southeast wind.
Sunday
A slight chance of showers. Mostly sunny, with a high near 82. East southeast wind 3 to 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
De Soto IL
37.81°N 89.23°W
37.81°N 89.23°W
12:00 am CDT Oct 5, 2026
1am CDT Oct 5, 2026-6pm CDT Oct 11, 2026


