Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
21°F
-6°C
| Humidity | 62% |
| Wind Speed | N 9 mph |
| Barometer | 30.32 in (1027.2 mb) |
| Dewpoint | 10°F (-12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 11°F (-12°C) |
| Last update | 29 Jan 11:52 pm CST |
Extended Forecast for
3 Miles SW Vergennes IL
Cold Weather Advisory January 31, 12:00am until January 31, 12:00pm
Overnight

Low: 9 °F
Slight Chance
SnowFriday

High: 19 °F
Partly Sunny
Friday Night

Low: 5 °F
Chance
FlurriesSaturday

High: 18 °F
Mostly Sunny
Saturday Night

Low: 1 °F
Mostly Clear
Sunday

High: 27 °F
Mostly Sunny
Sunday Night

Low: 17 °F
Mostly Cloudy
Monday

High: 35 °F
Partly Sunny
Monday Night

Low: 20 °F
Mostly Cloudy
Detailed Forecast
Overnight
A slight chance of snow before 3am, then a chance of flurries between 3am and 4am. Mostly cloudy, with a low around 9. North wind 5 to 7 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 19. Wind chill values as low as -2. North wind 7 to 11 mph, with gusts as high as 18 mph.
Friday Night
A chance of flurries before midnight. Mostly cloudy, with a low around 5. Wind chill values as low as -10. North northwest wind 10 to 13 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 18. Wind chill values as low as -12. Northwest wind 9 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 1. Northwest wind 5 to 8 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 27. Calm wind becoming south southwest 5 to 7 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 17. South wind around 6 mph.
Monday
Partly sunny, with a high near 35. West southwest wind 5 to 8 mph becoming northwest in the afternoon.
Monday Night
Mostly cloudy, with a low around 20. Calm wind becoming south around 5 mph after midnight.
Tuesday
A slight chance of showers after noon. Mostly cloudy, with a high near 37. South wind 5 to 7 mph.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 25. South wind around 6 mph becoming north northwest after midnight.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 35. North northwest wind 6 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 21. North northwest wind around 7 mph.
Thursday
Partly sunny, with a high near 33. Northwest wind 6 to 9 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
10:56 pm CST Jan 29, 2026
12am CST Jan 30, 2026-6pm CST Feb 5, 2026



