Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
76°F
24°C
| Humidity | 56% |
| Wind Speed | S 7 mph |
| Barometer | 29.87 in (1011.3 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 15 May 7:52 pm CDT |
Extended Forecast for
De Soto IL
Tonight
Low: 67 °F
Mostly Cloudy
then Chance
T-stormsSaturday
High: 86 °F
Chance
T-stormsSaturday Night
Low: 65 °F
Chance
T-storms then
Mostly ClearSunday
High: 89 °F
Sunny
Sunday Night
Low: 69 °F
Mostly Clear
Monday
High: 90 °F
Mostly Sunny
then Chance
T-storms and
BreezyMonday Night
Low: 71 °F
Chance
T-stormsTuesday
High: 83 °F
Showers
LikelyTuesday Night
Low: 63 °F
Showers
Likely
Detailed Forecast
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 67. South wind 9 to 11 mph, with gusts as high as 21 mph.
Saturday
A 50 percent chance of showers and thunderstorms, mainly before 5pm. Mostly cloudy, with a high near 86. South southwest wind around 11 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 65. South wind 6 to 9 mph.
Sunday
Sunny, with a high near 89. South wind 7 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 69. South wind 10 to 14 mph, with gusts as high as 21 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Breezy, with a south wind 13 to 20 mph, with gusts as high as 28 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. South wind 13 to 15 mph, with gusts as high as 24 mph.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. South southwest wind 13 to 17 mph, with gusts as high as 24 mph.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Southwest wind 5 to 9 mph becoming north northwest after midnight.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. North wind 7 to 9 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 56. North wind 5 to 8 mph.
Thursday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 76. Northeast wind around 8 mph.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 57. Northeast wind 5 to 7 mph becoming calm after midnight.
Friday
A slight chance of showers. Mostly sunny, with a high near 80. East northeast wind 3 to 7 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
5:21 pm CDT May 15, 2026
8pm CDT May 15, 2026-6pm CDT May 22, 2026
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