Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
29°F
-2°C
| Humidity | 78% |
| Wind Speed | N 13 mph |
| Barometer | 30.29 in (1026.1 mb) |
| Dewpoint | 23°F (-5°C) |
| Visibility | 10.00 mi |
| Wind Chill | 19°F (-7°C) |
| Last update | 8 Dec 4:52 am CST |
Extended Forecast for
3 Miles SW Vergennes IL
Today

High: 36 °F
Decreasing
CloudsTonight

Low: 26 °F
Increasing
CloudsTuesday

High: 50 °F
Mostly Sunny
Tuesday Night

Low: 42 °F
Increasing
CloudsWednesday

High: 50 °F
Partly Sunny
Wednesday Night

Low: 27 °F
Mostly Cloudy
Thursday

High: 39 °F
Mostly Cloudy
Thursday Night

Low: 24 °F
Mostly Cloudy
Friday

High: 36 °F
Partly Sunny
Detailed Forecast
Today
Mostly cloudy, then gradually becoming sunny, with a high near 36. North wind 5 to 8 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 26. Light and variable wind becoming south southwest 8 to 13 mph after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 50. South southwest wind around 15 mph, with gusts as high as 22 mph.
Tuesday Night
Increasing clouds, with a low around 42. Southwest wind 15 to 18 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 50. West southwest wind 10 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 27. North northwest wind 3 to 8 mph.
Thursday
Mostly cloudy, with a high near 39. Light and variable wind becoming south southwest 5 to 8 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 24. South wind 6 to 9 mph becoming north northwest after midnight.
Friday
Partly sunny, with a high near 36. Northwest wind 9 to 11 mph, with gusts as high as 18 mph.
Friday Night
Mostly cloudy, with a low around 11. North northwest wind around 10 mph.
Saturday
Mostly sunny, with a high near 23. North wind 6 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 12. North wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 29. North northwest wind 6 to 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
3 Miles SW Vergennes IL
37.86°N 89.39°W
37.86°N 89.39°W
5:01 am CST Dec 8, 2025
5am CST Dec 8, 2025-6pm CST Dec 14, 2025


