Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Partly Cloudy
29°F
-2°C
| Humidity | 72% |
| Wind Speed | S 8 mph |
| Barometer | 30.16 in (1021.5 mb) |
| Dewpoint | 21°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 21°F (-6°C) |
| Last update | 9 Dec 1:52 am CST |
Extended Forecast for
3 Miles SW Vergennes IL
Overnight
Low: 30 °F
Mostly Cloudy
Tuesday
High: 49 °F
Decreasing
CloudsTuesday Night
Low: 43 °F⇑
Mostly Cloudy
and Breezy
then CloudyWednesday
High: 49 °F
Mostly Cloudy
and BreezyWednesday Night
Low: 27 °F
Mostly Cloudy
Thursday
High: 42 °F
Mostly Cloudy
Thursday Night
Low: 32 °F
Mostly Cloudy
Friday
High: 47 °F
Partly Sunny
Friday Night
Low: 21 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a steady temperature around 30. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 49. South southwest wind 14 to 18 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a temperature rising to around 50 by 2am. Breezy, with a south southwest wind 17 to 20 mph, with gusts as high as 28 mph.
Wednesday
Sunny through mid morning, then becoming mostly cloudy, with a high near 49. Breezy, with a northwest wind 13 to 23 mph, with gusts as high as 32 mph.
Wednesday Night
Mostly cloudy, with a low around 27. Northwest wind 5 to 10 mph becoming light west northwest after midnight.
Thursday
Mostly cloudy, with a high near 42. Light and variable wind becoming west southwest 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 32. Southeast wind around 7 mph.
Friday
Partly sunny, with a high near 47. Southeast wind 7 to 10 mph becoming northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 21. North northwest wind around 9 mph.
Saturday
Partly sunny, with a high near 32. North northeast wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 12. North wind around 7 mph.
Sunday
Mostly sunny, with a high near 25. North wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 15. North northeast wind around 6 mph becoming southeast after midnight.
Monday
A slight chance of rain and snow showers. Partly sunny, with a high near 37. South wind 6 to 9 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
2:16 am CST Dec 9, 2025
2am CST Dec 9, 2025-6pm CST Dec 15, 2025
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