Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
66°F
19°C
| Humidity | 59% |
| Wind Speed | W 8 mph |
| Barometer | 29.80 in (1009.0 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 4 Nov 2:52 pm CST |
Extended Forecast for
De Soto IL
This Afternoon

High: 64 °F
Mostly Cloudy
Tonight

Low: 45 °F
Gradual
ClearingThursday

High: 66 °F
Sunny
Thursday Night

Low: 42 °F
Increasing
CloudsFriday

High: 57 °F
Mostly Cloudy
Friday Night

Low: 32 °F
Mostly Clear
Saturday

High: 55 °F
Sunny
Saturday Night

Low: 30 °F
Mostly Clear
Sunday

High: 59 °F
Sunny
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 64. West southwest wind 6 to 8 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 45. Light southwest wind.
Thursday
Sunny, with a high near 66. Light and variable wind becoming west southwest 5 to 8 mph.
Thursday Night
Increasing clouds, with a low around 42. Light northwest wind.
Friday
Mostly cloudy, with a high near 57. Light north northwest wind increasing to 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 32. North wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 55. Calm wind becoming north around 5 mph.
Saturday Night
Mostly clear, with a low around 30. Calm wind.
Sunday
Sunny, with a high near 59. Light west northwest wind.
Sunday Night
Mostly clear, with a low around 32. Calm wind.
Monday
Sunny, with a high near 64. Calm wind becoming south southwest around 5 mph.
Monday Night
Clear, with a low around 36. Calm wind.
Tuesday
Sunny, with a high near 66. Calm wind becoming west around 5 mph.
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ABOUT THIS FORECAST
Point Forecast:
De Soto IL
37.81°N 89.23°W
37.81°N 89.23°W
1:11 pm CST Nov 4, 2026
3pm CST Nov 4, 2026-6pm CST Nov 10, 2026


