Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fog/Mist
48°F
9°C
| Humidity | 93% |
| Wind Speed | NE 6 mph |
| Barometer | 29.99 in (1016.2 mb) |
| Dewpoint | 46°F (8°C) |
| Visibility | 5.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 27 Dec 5:56 am CST |
Extended Forecast for
Mount Vernon IL
Dense Fog Advisory until December 27, 09:00am
NOW until 9:00am Sat
Dense Fog Advisory
Today
High: 64 °F
Patchy Dense
Fog then
Mostly CloudyTonight
Low: 60 °F⇑
Cloudy
Sunday
High: 72 °F
Slight Chance
Showers then
Showers and
BreezySunday Night
Low: 21 °F
Showers and
Breezy then
Slight Chance
Showers and
BlusteryMonday
High: 27 °F
Mostly Sunny
and BlusteryMonday Night
Low: 18 °F
Partly Cloudy
Tuesday
High: 33 °F
Sunny
Tuesday Night
Low: 24 °F
Mostly Clear
Detailed Forecast
Today
Patchy dense fog before 9am. Otherwise, mostly cloudy, with a high near 64. Light east wind becoming southeast 5 to 9 mph in the morning.
Tonight
Cloudy, with a temperature rising to around 64 by 4am. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Sunday
Showers, mainly after noon. High near 72. Breezy, with a south southwest wind 11 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 9pm. Low around 21. Breezy, with a southwest wind 20 to 23 mph becoming west northwest in the evening. Winds could gust as high as 36 mph. Chance of precipitation is 90%.
Monday
Mostly sunny, with a high near 27. Blustery, with a west northwest wind 16 to 23 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around 18. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 33. Northwest wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 24. West southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 43. West wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 24. West wind around 7 mph.
New Year's Day
Mostly sunny, with a high near 35. North northwest wind 5 to 9 mph.
Thursday Night
Mostly clear, with a low around 15. Light north northwest wind.
Friday
Mostly sunny, with a high near 32. Light and variable wind becoming northwest around 6 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
3:16 am CST Dec 27, 2025
6am CST Dec 27, 2025-6pm CST Jan 2, 2026
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