Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
41°F
5°C
| Humidity | 62% |
| Wind Speed | SW 9 mph |
| Barometer | 30.16 in (1021.2 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 35°F (2°C) |
| Last update | 12 Jan 11:52 pm CST |
Extended Forecast for
3 Miles SW Vergennes IL
Overnight

Low: 35 °F
Mostly Clear
Tuesday

High: 61 °F
Sunny
Tuesday Night

Low: 40 °F
Chance
ShowersWednesday
High: 45 °F
Mostly Cloudy
then Partly
Sunny and
BreezyWednesday Night
Low: 18 °F
Partly Cloudy
and Blustery
then Mostly
ClearThursday

High: 32 °F
Sunny
Thursday Night

Low: 24 °F
Mostly Cloudy
Friday

High: 45 °F
Partly Sunny
Friday Night

Low: 20 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 35. South southwest wind 8 to 10 mph.
Tuesday
Sunny, with a high near 61. Southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
A 40 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 40. Southwest wind 6 to 8 mph becoming northwest after midnight.
Wednesday
Mostly cloudy, with a high near 45. Breezy, with a north northwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 18. Blustery, with a north northwest wind 11 to 20 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 32. North northwest wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 24. South southwest wind 5 to 14 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 45. West southwest wind 11 to 16 mph, with gusts as high as 24 mph.
Friday Night
Mostly cloudy, with a low around 20. West wind around 11 mph.
Saturday
Partly sunny, with a high near 31. West wind 10 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 12. West northwest wind around 10 mph.
Sunday
Sunny, with a high near 27. West northwest wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 14. West southwest wind around 8 mph.
M.L.King Day
Sunny, with a high near 36. West southwest wind 8 to 11 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
10:26 pm CST Jan 12, 2026
12am CST Jan 13, 2026-6pm CST Jan 19, 2026


