Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
49°F
9°C
| Humidity | 97% |
| Wind Speed | Calm |
| Barometer | 30.15 in (1021.4 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 4 Oct 3:56 am CDT |
Extended Forecast for
Mount Vernon IL
Today
High: 81 °F
Patchy Fog
then SunnyTonight
Low: 51 °F
Mostly Clear
Monday
High: 75 °F
Sunny
Monday Night
Low: 46 °F
Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 51 °F
Clear
Wednesday
High: 84 °F
Sunny
Wednesday Night
Low: 53 °F
Clear
Thursday
High: 83 °F
Sunny
Detailed Forecast
Today
Patchy fog between 7am and 9am. Otherwise, sunny, with a high near 81. Calm wind becoming north 5 to 7 mph in the afternoon.
Tonight
Mostly clear, with a low around 51. North wind 3 to 5 mph.
Monday
Sunny, with a high near 75. Northeast wind 3 to 8 mph.
Monday Night
Clear, with a low around 46. Light east wind.
Tuesday
Sunny, with a high near 79. Light and variable wind.
Tuesday Night
Clear, with a low around 51. Calm wind.
Wednesday
Sunny, with a high near 84. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Wednesday Night
Clear, with a low around 53. Calm wind.
Thursday
Sunny, with a high near 83. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54. Calm wind.
Friday
Sunny, with a high near 85. Calm wind becoming southeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 55. Light east wind.
Saturday
Mostly sunny, with a high near 86. Light east wind becoming east southeast 5 to 10 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mount Vernon IL
38.31°N 88.91°W
38.31°N 88.91°W
1:21 am CDT Oct 4, 2026
4am CDT Oct 4, 2026-6pm CDT Oct 10, 2026
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