National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

N/A

Humidity NA
Wind Speed Vrbl 7 mph
Barometer 30.38 in
Dewpoint N/A
Visibility 10.00 mi
Last update 27 Nov 2:56 pm CST
Extended Forecast for

4 Miles ESE Mount Vernon IL

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 41. West wind 6 to 10 mph.

    High: 41 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 21. Calm wind becoming northwest around 5 mph after midnight.

    Low: 21 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 39. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 39 °F

    Sunny

  • Friday Night

    Friday Night: A 50 percent chance of snow, mainly after 3am. Increasing clouds, with a low around 28. Calm wind becoming east southeast 5 to 7 mph after midnight.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow, possibly mixed with rain before noon, then rain and snow, possibly mixed with sleet between noon and 3pm, then rain, possibly mixed with snow after 3pm. High near 40. Southeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.

    High: 40 °F

    Wintry Mix

  • Saturday Night

    Saturday Night: Rain before 3am, then a chance of snow. Low around 26. South wind 10 to 14 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%.

    Low: 26 °F

    Rain then
    Chance
    Rain/Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 32. West northwest wind 9 to 15 mph, with gusts as high as 22 mph.

    High: 32 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17. North northeast wind 3 to 7 mph.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 32. Northeast wind around 6 mph.

    High: 32 °F

    Mostly Cloudy

Detailed Forecast

Thanksgiving Day
Sunny, with a high near 41. West wind 6 to 10 mph.
Tonight
Clear, with a low around 21. Calm wind becoming northwest around 5 mph after midnight.
Friday
Sunny, with a high near 39. Northwest wind around 5 mph becoming calm in the afternoon.
Friday Night
A 50 percent chance of snow, mainly after 3am. Increasing clouds, with a low around 28. Calm wind becoming east southeast 5 to 7 mph after midnight.
Saturday
Snow, possibly mixed with rain before noon, then rain and snow, possibly mixed with sleet between noon and 3pm, then rain, possibly mixed with snow after 3pm. High near 40. Southeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.
Saturday Night
Rain before 3am, then a chance of snow. Low around 26. South wind 10 to 14 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%.
Sunday
Mostly cloudy, with a high near 32. West northwest wind 9 to 15 mph, with gusts as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 17. North northeast wind 3 to 7 mph.
Monday
Mostly cloudy, with a high near 32. Northeast wind around 6 mph.
Monday Night
A chance of snow. Mostly cloudy, with a low around 21. Light northeast wind.
Tuesday
Partly sunny, with a high near 33. Calm wind becoming north northwest around 6 mph.
Tuesday Night
Partly cloudy, with a low around 18. Light and variable wind.
Wednesday
Partly sunny, with a high near 38. South southwest wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Mount Vernon IL
 38.29°N 88.86°W
Last Update:
3:16 pm CST Nov 27, 2025
Forecast Valid:
3pm CST Nov 27, 2025-6pm CST Dec 3, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation