Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
51°F
11°C
| Humidity | 92% |
| Wind Speed | Calm |
| Barometer | 30.17 in (1022.1 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 3 Oct 8:56 pm CDT |
Extended Forecast for
Mount Vernon IL
Tonight
Low: 49 °F
Mostly Cloudy
Sunday
High: 80 °F
Patchy Fog
then SunnySunday Night
Low: 51 °F
Mostly Clear
Monday
High: 75 °F
Sunny
Monday Night
Low: 47 °F
Clear
Tuesday
High: 77 °F
Sunny
Tuesday Night
Low: 49 °F
Clear
Wednesday
High: 84 °F
Sunny
Wednesday Night
Low: 52 °F
Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 49. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 80. Calm wind becoming north 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 51. North wind 3 to 5 mph.
Monday
Sunny, with a high near 75. Northeast wind 5 to 8 mph.
Monday Night
Clear, with a low around 47. Light northeast wind.
Tuesday
Sunny, with a high near 77. Light south southeast wind.
Tuesday Night
Clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 84. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 52. Calm wind.
Thursday
Sunny, with a high near 83. Light north northeast wind.
Thursday Night
Clear, with a low around 53. Calm wind.
Friday
Sunny, with a high near 85. Calm wind becoming south southwest around 6 mph in the afternoon.
Friday Night
Clear, with a low around 55. Light south southeast wind.
Saturday
Sunny, with a high near 86. Calm wind becoming south 5 to 9 mph in the morning.
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
9:46 pm CDT Oct 3, 2026
9pm CDT Oct 3, 2026-6pm CDT Oct 10, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
