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

  • Today

    Today: Partly sunny, with a high near 37. West southwest wind 3 to 6 mph.

    High: 37 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Light and variable wind.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of snow, mainly after 8am. Mostly cloudy, with a high near 35. Calm wind becoming north 5 to 8 mph in the morning.

    High: 35 °F

    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

Today
Partly sunny, with a high near 37. West southwest wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 27. Light and variable wind.
Tuesday
A 40 percent chance of snow, mainly after 8am. Mostly cloudy, with a high near 35. Calm wind becoming north 5 to 8 mph in the morning.
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
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
3:22 am CST Feb 2, 2026
Forecast Valid:
4am 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