Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
6°F
-14°C
| Humidity | 83% |
| Wind Speed | Calm |
| Barometer | 30.46 in (1033.1 mb) |
| Dewpoint | 2°F (-17°C) |
| Visibility | 10.00 mi |
| Last update | 20 Jan 12:56 am CST |
Extended Forecast for
Mount Vernon IL
Overnight
Low: 4 °F
Clear
Tuesday
High: 34 °F
Becoming
SunnyTuesday Night
Low: 26 °F
Increasing
CloudsWednesday
High: 46 °F
Decreasing
CloudsWednesday Night
Low: 24 °F
Mostly Clear
Thursday
High: 37 °F
Mostly Sunny
Thursday Night
Low: 15 °F
Partly Cloudy
Friday
High: 20 °F
Mostly Cloudy
Friday Night
Low: 4 °F
Chance Snow
Showers
Detailed Forecast
Overnight
Clear, with a low around 4. Calm wind.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 34. Wind chill values as low as zero. Light southwest wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Increasing clouds, with a low around 26. South wind 9 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 46. West southwest wind 6 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 24. Calm wind becoming west southwest around 6 mph in the evening.
Thursday
Mostly sunny, with a high near 37. Northwest wind 3 to 6 mph.
Thursday Night
Partly cloudy, with a low around 15. Calm wind becoming north 5 to 7 mph after midnight.
Friday
Mostly cloudy, with a high near 20. North wind 8 to 11 mph.
Friday Night
A chance of snow showers, mainly after midnight. Mostly cloudy, with a low around 4. North northeast wind around 10 mph, with gusts as high as 18 mph.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 17. North northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 8. North northeast wind around 7 mph.
Sunday
Mostly sunny, with a high near 23. North wind 5 to 7 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 7. West wind 3 to 5 mph.
Monday
Sunny, with a high near 26. West northwest wind 5 to 7 mph becoming southwest in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mount Vernon IL
38.31°N 88.91°W
38.31°N 88.91°W
12:46 am CST Jan 20, 2026
1am CST Jan 20, 2026-6pm CST Jan 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
