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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Mount Vernon IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 38. Southwest wind around 6 mph.

    High: 38 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Calm wind becoming east around 5 mph after midnight.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of snow and freezing rain before noon, then a chance of snow between noon and 5pm. Mostly cloudy, with a high near 34. East northeast wind 5 to 9 mph becoming north in the afternoon. Chance of precipitation is 40%.

    High: 34 °F

    Chance Wintry
    Mix then
    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 19. North wind 3 to 6 mph.

    Low: 19 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 30. North wind 3 to 6 mph.

    High: 30 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12. Calm wind.

    Low: 12 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. South wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 18 mph.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44. West wind 7 to 10 mph becoming north northwest in the afternoon.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 38. Southwest wind around 6 mph.
Tonight
Mostly cloudy, with a low around 27. Calm wind becoming east around 5 mph after midnight.
Tuesday
A chance of snow and freezing rain before noon, then a chance of snow between noon and 5pm. Mostly cloudy, with a high near 34. East northeast wind 5 to 9 mph becoming north in the afternoon. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 19. North wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 30. North wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 12. Calm wind.
Thursday
Partly sunny, with a high near 36. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 28. South wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 18 mph.
Friday
Mostly sunny, with a high near 44. West wind 7 to 10 mph becoming north northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 20. North northwest wind around 6 mph.
Saturday
Sunny, with a high near 35. North northeast wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 21. Southeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 40. South wind around 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
10:57 am CST Feb 2, 2026
Forecast Valid:
12pm CST Feb 2, 2026-6pm CST Feb 8, 2026
 
Forecast Discussion
 
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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