Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
3 Miles SW Vergennes IL
Overnight
Low: 37 °F
Chance
ShowersThursday
High: 57 °F
Mostly Sunny
Thursday Night
Low: 36 °F
Mostly Clear
Friday
High: 67 °F
Sunny
Friday Night
Low: 43 °F
Mostly Clear
Saturday
High: 67 °F
Mostly Sunny
Saturday Night
Low: 34 °F
Slight Chance
ShowersSunday
High: 44 °F
Slight Chance
Showers then
Chance
Rain/SnowSunday Night
Low: 31 °F
Rain/Snow
Detailed Forecast
Overnight
A 50 percent chance of showers, mainly before 5am. Mostly cloudy, with a low around 37. Northeast wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 57. East northeast wind 5 to 7 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 36. Light and variable wind.
Friday
Sunny, with a high near 67. South southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 43. South southwest wind 6 to 9 mph becoming north after midnight.
Saturday
Mostly sunny, with a high near 67. North northeast wind 6 to 10 mph becoming south in the afternoon.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 34. South wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 20 mph.
Sunday
A slight chance of rain showers before noon, then a chance of rain and snow showers. Mostly cloudy, with a high near 44. East northeast wind 11 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Rain and snow showers. Cloudy, with a low around 31. Northeast wind 11 to 13 mph, with gusts as high as 20 mph.
Monday
A chance of rain and snow showers before noon, then a slight chance of rain showers. Cloudy, with a high near 43. Northeast wind 9 to 11 mph, with gusts as high as 18 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 30. Northeast wind around 8 mph.
Tuesday
A chance of showers. Cloudy, with a high near 47. East northeast wind around 8 mph becoming west southwest in the afternoon.
Tuesday Night
A chance of showers. Cloudy, with a low around 33. North wind around 7 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 55. East northeast wind around 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SW Vergennes IL
37.86°N 89.39°W
37.86°N 89.39°W
12:46 am CST Feb 26, 2026
1am CST Feb 26, 2026-6pm CST Mar 4, 2026
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