Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Partly Cloudy
82°F
28°C
| Humidity | 55% |
| Wind Speed | NA |
| Barometer | 30.02 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 84°F (29°C) |
| Last update | 27 Aug 10:53 am CDT |
Extended Forecast for
De Soto IL
Today
High: 88 °F
Sunny
Tonight
Low: 64 °F
Mostly Clear
Friday
High: 88 °F
Sunny
Friday Night
Low: 61 °F
Decreasing
CloudsSaturday
High: 89 °F
Sunny
Saturday Night
Low: 65 °F
Mostly Clear
Sunday
High: 93 °F
Sunny
Sunday Night
Low: 71 °F
Mostly Clear
Monday
High: 95 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 88. North northwest wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 64. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly cloudy, then gradually becoming clear, with a low around 61. Light east wind.
Saturday
Sunny, with a high near 89. Light and variable wind.
Saturday Night
Mostly clear, with a low around 65. Calm wind.
Sunday
Sunny, with a high near 93. Light south wind becoming south southwest 6 to 11 mph in the morning.
Sunday Night
Mostly clear, with a low around 71. South wind 3 to 6 mph.
Monday
Sunny, with a high near 95. South southwest wind 6 to 11 mph.
Monday Night
Mostly clear, with a low around 74. South wind 3 to 7 mph.
Tuesday
Sunny, with a high near 95. Southwest wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 75. South wind 3 to 6 mph.
Wednesday
Sunny, with a high near 96. South southwest wind 5 to 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
De Soto IL
37.81°N 89.23°W
37.81°N 89.23°W
10:21 am CDT Aug 27, 2026
11am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
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