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

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 50. Calm wind becoming east southeast 5 to 7 mph in the morning.

    High: 50 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30. East southeast wind 3 to 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 55. Calm wind becoming south around 6 mph.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 53. Calm wind becoming southeast around 6 mph in the morning.

    High: 53 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Cloudy, with a low around 43. East wind around 7 mph.

    Low: 43 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before noon. Mostly sunny, with a high near 55. North northeast wind 6 to 9 mph.

    High: 55 °F

    Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. North wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 26. Calm wind.
Thursday
Partly sunny, with a high near 50. Calm wind becoming east southeast 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 30. East southeast wind 3 to 5 mph.
Friday
Sunny, with a high near 55. Calm wind becoming south around 6 mph.
Friday Night
Mostly cloudy, with a low around 34. Calm wind.
Saturday
A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 53. Calm wind becoming southeast around 6 mph in the morning.
Saturday Night
A 50 percent chance of showers. Cloudy, with a low around 43. East wind around 7 mph.
Sunday
A chance of showers before noon. Mostly sunny, with a high near 55. North northeast wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 36. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 60. Calm wind becoming south southeast 5 to 8 mph in the morning.
Monday Night
Mostly cloudy, with a low around 43. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 63. South wind 7 to 15 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 53. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of showers. Partly sunny, with a high near 67. South southwest wind 10 to 15 mph, with gusts as high as 24 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:
10:31 pm CST Feb 11, 2026
Forecast Valid:
10pm CST Feb 11, 2026-6pm CST Feb 18, 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