Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast and Breezy
67°F
19°C
| Humidity | 84% |
| Wind Speed | S 23 G 36 mph |
| Barometer | 29.68 in (1004.8 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 28 Dec 10:52 am CST |
Extended Forecast for
Vergennes IL
Wind Advisory December 28, 06:00pm until December 29, 06:00am
Today

High: 70 °F
Severe
Thunderstorms
and BreezyTonight
Low: 20 °F
Blustery.
Chance
Showers then
Mostly ClearMonday

High: 30 °F
Mostly Sunny
and BlusteryMonday Night

Low: 18 °F
Mostly Clear
Tuesday

High: 35 °F
Sunny
Tuesday Night

Low: 26 °F
Mostly Clear
Wednesday

High: 45 °F
Mostly Sunny
Wednesday Night

Low: 27 °F
Partly Cloudy
New Year's Day

High: 45 °F
Mostly Sunny
Detailed Forecast
Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 70. Breezy, with a south southwest wind 22 to 26 mph becoming west in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 80%.
Tonight
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Blustery, with a west northwest wind 22 to 28 mph, with gusts as high as 40 mph.
Monday
Mostly sunny, with a high near 30. Blustery, with a west northwest wind 17 to 23 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 18. Northwest wind 9 to 16 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 35. Northwest wind 6 to 9 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 26. Southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 45. West wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 27. West wind around 6 mph.
New Year's Day
Mostly sunny, with a high near 45. Northwest wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 24. North wind 3 to 5 mph.
Friday
Partly sunny, with a high near 44. Light and variable wind becoming south 5 to 7 mph in the morning.
Friday Night
Mostly cloudy, with a low around 34. South wind around 6 mph.
Saturday
Mostly cloudy, with a high near 52. South southwest wind 6 to 9 mph.
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ABOUT THIS FORECAST
Point Forecast:
Vergennes IL
37.9°N 89.33°W
37.9°N 89.33°W
10:31 am CST Dec 28, 2025
11am CST Dec 28, 2025-6pm CST Jan 3, 2026



