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

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Overcast

24°F

-4°C

Humidity 71%
Wind Speed W 6 mph
Barometer 30.38 in (1029.9 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 29 Dec 8:56 pm CST
Extended Forecast for

Mount Vernon IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 15. Northwest wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 15 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. West northwest wind 6 to 9 mph becoming southwest in the afternoon.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. West southwest wind around 6 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 41. West northwest wind 6 to 10 mph.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. Light and variable wind.

    Low: 25 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 40. North wind around 5 mph becoming calm in the afternoon.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 46. Calm wind becoming east southeast around 5 mph.

    High: 46 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. Calm wind becoming north around 5 mph after midnight.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 15. Northwest wind 6 to 9 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 34. West northwest wind 6 to 9 mph becoming southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 27. West southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 41. West northwest wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 25. Light and variable wind.
New Year's Day
Mostly sunny, with a high near 40. North wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 28. Calm wind.
Friday
Mostly cloudy, with a high near 46. Calm wind becoming east southeast around 5 mph.
Friday Night
Mostly cloudy, with a low around 30. Calm wind becoming north around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 44. North wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 27. Calm wind.
Sunday
Mostly sunny, with a high near 47. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 33. South southwest wind around 6 mph.
Monday
Mostly sunny, with a high near 51. West wind 6 to 8 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:
9:11 pm CST Dec 29, 2025
Forecast Valid:
9pm CST Dec 29, 2025-6pm CST Jan 5, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation