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Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fog
47°F
8°C
| Humidity | 100% |
| Wind Speed | N 5 mph |
| Barometer | 30.25 in (1024.7 mb) |
| Dewpoint | 47°F (8°C) |
| Visibility | 0.50 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 24 Dec 3:56 am CST |
Extended Forecast for
Mount Vernon IL
Dense Fog Advisory December 24, 04:09am until December 24, 09:00am
NOW until 9:00am Wed
Dense Fog Advisory
Today
High: 64 °F
Patchy
Drizzle and
Areas Dense
FogTonight
Low: 57 °F
Mostly Cloudy
Christmas Day
High: 66 °F
Slight Chance
Showers then
Mostly CloudyThursday Night
Low: 59 °F
Mostly Cloudy
Friday
High: 71 °F
Mostly Sunny
Friday Night
Low: 48 °F
Partly Cloudy
Saturday
High: 68 °F
Mostly Cloudy
Saturday Night
Low: 47 °F
Mostly Cloudy
then Slight
Chance
Showers
Detailed Forecast
Today
Patchy drizzle between 8am and 2pm. Areas of dense fog before 9am. Otherwise, cloudy, with a high near 64. East wind 5 to 8 mph becoming south southeast in the afternoon.
Tonight
Mostly cloudy, with a low around 57. South wind 5 to 7 mph becoming west southwest after midnight.
Christmas Day
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 66. West southwest wind around 6 mph becoming east in the afternoon.
Thursday Night
Mostly cloudy, with a low around 59. Light and variable wind becoming south southwest 5 to 9 mph in the evening.
Friday
Mostly sunny, with a high near 71. South southwest wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 48. Light and variable wind.
Saturday
Mostly cloudy, with a high near 68. Calm wind becoming south 5 to 8 mph in the morning.
Saturday Night
A slight chance of showers after midnight. Mostly cloudy, with a low around 47. South wind 7 to 11 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.
Sunday
A chance of showers. Mostly cloudy, with a high near 55. Northwest wind 11 to 16 mph, with gusts as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 19. Northwest wind around 14 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 27. Northwest wind 9 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 16. West northwest wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 32. West northwest wind 5 to 9 mph becoming southwest in the afternoon.
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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
3:16 am CST Dec 24, 2025
4am CST Dec 24, 2025-6pm CST Dec 30, 2025
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