Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
20°F
-7°C
| Humidity | 85% |
| Wind Speed | N 5 mph |
| Barometer | 30.22 in (1023.8 mb) |
| Dewpoint | 16°F (-9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 13°F (-11°C) |
| Last update | 4 Dec 10:52 pm CST |
Extended Forecast for
De Soto IL
Tonight
Low: 21 °F
Mostly Cloudy
Friday
High: 42 °F
Becoming
SunnyFriday Night
Low: 28 °F
Increasing
CloudsSaturday
High: 45 °F
Decreasing
CloudsSaturday Night
Low: 30 °F
Mostly Cloudy
then Slight
Chance
Freezing RainSunday
High: 44 °F
Slight Chance
Showers then
Mostly CloudySunday Night
Low: 21 °F
Slight Chance
Rain/Snow
then Mostly
CloudyMonday
High: 35 °F
Mostly Sunny
Monday Night
Low: 24 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 21. Calm wind.
Friday
Partly sunny, then gradually becoming sunny, with a high near 42. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 28. Southwest wind 3 to 6 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 45. Light and variable wind.
Saturday Night
A slight chance of freezing rain after midnight. Mostly cloudy, with a low around 30. Light and variable wind. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 44. Light and variable wind becoming north 5 to 10 mph in the morning.
Sunday Night
A slight chance of rain and snow showers before midnight. Mostly cloudy, with a low around 21. North wind 6 to 10 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 35. North wind around 6 mph becoming light and variable in the afternoon.
Monday Night
Partly cloudy, with a low around 24. Calm wind becoming south southwest 5 to 8 mph after midnight.
Tuesday
Mostly sunny, with a high near 47. Southwest wind 7 to 11 mph.
Tuesday Night
Mostly cloudy, with a low around 34. South southwest wind 6 to 11 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 50. South southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 25. Northwest wind 7 to 9 mph.
Thursday
Partly sunny, with a high near 37. West northwest wind 7 to 10 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
10:26 pm CST Dec 4, 2025
11pm CST Dec 4, 2025-6pm CST Dec 11, 2025
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