Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Overcast
N/A
| Humidity | NA |
| Wind Speed | S 18 mph |
| Barometer | 29.89 in |
| Dewpoint | N/A |
| Visibility | 10.00 mi |
| Last update | 9 Dec 12:56 pm CST |
Extended Forecast for
Mount Vernon IL
This Afternoon

High: 47 °F
Mostly Cloudy
Tonight
Low: 39 °F⇑
Breezy.
Mostly Cloudy
then Slight
Chance
ShowersWednesday

High: 48 °F⇓
Mostly Cloudy
and BreezyWednesday Night

Low: 26 °F
Mostly Cloudy
Thursday

High: 40 °F
Mostly Cloudy
Thursday Night

Low: 29 °F
Mostly Cloudy
Friday

High: 44 °F
Partly Sunny
Friday Night

Low: 19 °F
Mostly Cloudy
Saturday

High: 30 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 47. South southwest wind around 18 mph, with gusts as high as 31 mph.
Tonight
A 20 percent chance of showers after midnight. Mostly cloudy, with a temperature rising to around 44 by 2am. Breezy, with a southwest wind 15 to 21 mph, with gusts as high as 37 mph.
Wednesday
Mostly cloudy, with a temperature rising to near 48 by 8am, then falling to around 36 during the remainder of the day. Breezy, with a northwest wind 13 to 23 mph, with gusts as high as 38 mph.
Wednesday Night
Mostly cloudy, with a low around 26. Northwest wind 5 to 10 mph becoming light west northwest after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly cloudy, with a high near 40. Light and variable wind becoming west around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 29. East wind 3 to 6 mph.
Friday
Partly sunny, with a high near 44. Southeast wind 6 to 10 mph becoming northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 19. North northwest wind 6 to 8 mph.
Saturday
Mostly cloudy, with a high near 30. North wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 10. North wind around 6 mph.
Sunday
Mostly sunny, with a high near 24. North wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 13. Light and variable wind becoming southeast around 6 mph after midnight.
Monday
A chance of rain and snow showers. Partly sunny, with a high near 35. Southeast wind 6 to 8 mph becoming south southwest in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Mount Vernon IL
38.31°N 88.91°W
38.31°N 88.91°W
10:31 am CST Dec 9, 2025
1pm CST Dec 9, 2025-6pm CST Dec 15, 2025


