Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Light Snow

N/A

Humidity NA
Wind Speed Vrbl 5 mph
Barometer 30.05 in
Dewpoint N/A
Visibility 1.00 mi
Last update 1 Dec 11:56 pm CST
Extended Forecast for

Mount Vernon IL

Winter Weather Advisory December 2, 12:12am until December 2, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 2, 12:12am until December 2, 06:00am

    NOW until 6:00am Tue

    Winter Weather Advisory

  • Overnight

    Low: 20 °F

    Snow

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 30. Northwest wind 5 to 7 mph becoming calm  in the afternoon.

    High: 30 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20. Calm wind becoming south around 5 mph after midnight.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 41. South southwest wind 5 to 10 mph becoming light southwest  in the afternoon.

    High: 41 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 17. Light and variable wind becoming north northwest 5 to 10 mph in the evening. Winds could gust as high as 18 mph.

    Low: 17 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 25. North wind 5 to 10 mph becoming light  in the afternoon. Winds could gust as high as 18 mph.

    High: 25 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14. Calm wind.

    Low: 14 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of snow showers.  Mostly sunny, with a high near 39. Calm wind becoming south southwest around 6 mph.

    High: 39 °F

    Slight Chance
    Snow Showers

Detailed Forecast

Overnight
Snow, mainly before 2am. Low around 20. Calm wind becoming northwest 5 to 7 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 30. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 20. Calm wind becoming south around 5 mph after midnight.
Wednesday
Increasing clouds, with a high near 41. South southwest wind 5 to 10 mph becoming light southwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 17. Light and variable wind becoming north northwest 5 to 10 mph in the evening. Winds could gust as high as 18 mph.
Thursday
Mostly sunny, with a high near 25. North wind 5 to 10 mph becoming light in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 14. Calm wind.
Friday
A slight chance of snow showers. Mostly sunny, with a high near 39. Calm wind becoming south southwest around 6 mph.
Friday Night
Partly cloudy, with a low around 25. Light southwest wind.
Saturday
Partly sunny, with a high near 41. Southwest wind 3 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 28. Light and variable wind becoming west around 6 mph after midnight.
Sunday
Mostly cloudy, with a high near 39. North wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 20. North wind 3 to 5 mph.
Monday
Partly sunny, with a high near 37. Light and variable wind becoming west around 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
11:31 pm CST Dec 1, 2025
12am CST Dec 2, 2025-6pm CST Dec 8, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database