Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
28°F
-2°C
| Humidity | 69% |
| Wind Speed | SW 5 mph |
| Barometer | 30.24 in (1024.4 mb) |
| Dewpoint | 19°F (-7°C) |
| Visibility | 10.00 mi |
| Wind Chill | 22°F (-6°C) |
| Last update | 2 Feb 8:52 am CST |
Extended Forecast for
3 Miles SW Vergennes IL
Today

High: 38 °F
Mostly Sunny
Tonight

Low: 27 °F
Mostly Cloudy
Tuesday

High: 37 °F
Chance Wintry
MixTuesday Night

Low: 19 °F
Mostly Cloudy
Wednesday

High: 31 °F
Partly Sunny
Wednesday Night

Low: 14 °F
Mostly Clear
Thursday

High: 36 °F
Mostly Sunny
Thursday Night

Low: 29 °F
Mostly Clear
Friday

High: 46 °F
Mostly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 38. Light and variable wind becoming west southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 27. Light south southeast wind.
Tuesday
A chance of snow and freezing rain before 9am, then a chance of rain between 9am and 3pm, then a chance of rain and snow after 3pm. Mostly cloudy, with a high near 37. Calm wind becoming north 5 to 9 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 19. North wind 5 to 8 mph.
Wednesday
Partly sunny, with a high near 31. North wind 5 to 7 mph.
Wednesday Night
Mostly clear, with a low around 14. Light and variable wind.
Thursday
Mostly sunny, with a high near 36. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 29. South wind around 10 mph becoming west southwest after midnight.
Friday
Mostly sunny, with a high near 46. West wind 8 to 10 mph becoming north northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 21. North northwest wind around 7 mph.
Saturday
Sunny, with a high near 38. North northeast wind around 7 mph becoming east in the afternoon.
Saturday Night
Partly cloudy, with a low around 24. East southeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 42. South southeast wind 5 to 7 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
6:26 am CST Feb 2, 2026
9am CST Feb 2, 2026-6pm CST Feb 8, 2026


