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

  • Overnight

    Overnight: Partly cloudy, with a low around 23. East southeast wind around 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 40. Southeast wind 6 to 10 mph.

    High: 40 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. East wind around 6 mph becoming calm in the evening.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Calm wind becoming south southwest around 6 mph in the evening.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 58. West wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 34. North wind 3 to 6 mph.

    Low: 34 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 49. North northeast wind 3 to 6 mph.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. Calm wind becoming east around 5 mph after midnight.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 23. East southeast wind around 6 mph.
Sunday
Partly sunny, with a high near 40. Southeast wind 6 to 10 mph.
Sunday Night
Partly cloudy, with a low around 27. East wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 52. Calm wind.
Monday Night
Mostly clear, with a low around 38. Calm wind becoming south southwest around 6 mph in the evening.
Tuesday
Partly sunny, with a high near 58. West wind 5 to 7 mph becoming light and variable in the afternoon.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 34. North wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 49. North northeast wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 32. Calm wind becoming east around 5 mph after midnight.
Thursday
A chance of showers, mainly after noon. Mostly cloudy, with a high near 46. East wind 5 to 7 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 31. East northeast wind around 6 mph.
Friday
A slight chance of showers. Partly sunny, with a high near 48. East northeast wind around 7 mph.
Friday Night
A chance of showers. Partly cloudy, with a low around 31. East wind 5 to 7 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 47. Southeast wind 7 to 9 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:
1:36 am CST Feb 8, 2026
Forecast Valid:
2am CST Feb 8, 2026-6pm CST Feb 14, 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