Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
56°F
13°C
| Humidity | 67% |
| Wind Speed | S 7 mph |
| Barometer | 30.21 in (1022.8 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 10.00 mi |
| Last update | 9 Apr 3:52 am CDT |
Extended Forecast for
3 Miles SW Vergennes IL
Today

High: 77 °F
Sunny
Tonight

Low: 56 °F
Mostly Clear
Friday
High: 78 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 56 °F
Chance
T-storms then
Chance
ShowersSaturday
High: 79 °F
Partly Sunny
then Chance
ShowersSaturday Night

Low: 60 °F
Partly Cloudy
Sunday

High: 81 °F
Partly Sunny
Sunday Night
Low: 64 °F
Slight Chance
T-storms then
Chance
ShowersMonday

High: 81 °F
Chance
Showers and
Breezy
Detailed Forecast
Today
Sunny, with a high near 77. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 56. South wind around 9 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. South southwest wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56. East northeast wind 3 to 6 mph. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. East northeast wind around 6 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 60. Southeast wind around 7 mph.
Sunday
Partly sunny, with a high near 81. South southwest wind 8 to 17 mph, with gusts as high as 26 mph.
Sunday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 64. South wind 15 to 17 mph, with gusts as high as 26 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 29 mph.
Monday Night
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. South southwest wind around 16 mph, with gusts as high as 24 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. South southwest wind 15 to 18 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South southwest wind around 15 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. South southwest wind around 15 mph, with gusts as high as 23 mph.
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SW Vergennes IL
37.86°N 89.39°W
37.86°N 89.39°W
3:21 am CDT Apr 9, 2026
4am CDT Apr 9, 2026-6pm CDT Apr 15, 2026


