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: Clear, with a low around 26. Calm wind.

    Low: 26 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 50. Calm wind.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. Calm wind becoming south southwest 5 to 7 mph in the evening.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. Southwest wind 6 to 8 mph becoming north northwest in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 31. North wind around 6 mph.

    Low: 31 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. North wind 3 to 6 mph.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 45. Calm wind becoming east southeast around 6 mph in the morning.

    High: 45 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of showers. Cloudy, with a low around 32. East wind around 6 mph.

    Low: 32 °F

    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 26. Calm wind.
Monday
Sunny, with a high near 50. Calm wind.
Monday Night
Partly cloudy, with a low around 36. Calm wind becoming south southwest 5 to 7 mph in the evening.
Tuesday
Mostly sunny, with a high near 60. Southwest wind 6 to 8 mph becoming north northwest in the afternoon.
Tuesday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 31. North wind around 6 mph.
Wednesday
Mostly sunny, with a high near 48. North wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 31. Calm wind.
Thursday
Mostly cloudy, with a high near 45. Calm wind becoming east southeast around 6 mph in the morning.
Thursday Night
A chance of showers. Cloudy, with a low around 32. East wind around 6 mph.
Friday
A slight chance of showers. Mostly cloudy, with a high near 45. East wind around 7 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 32. East northeast wind around 7 mph.
Saturday
Showers likely. Mostly cloudy, with a high near 47. East northeast wind 7 to 10 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 34. North northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Sunday
A chance of showers. Mostly sunny, with a high near 49. North wind 7 to 11 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:
3:16 am CST Feb 9, 2026
Forecast Valid:
3am CST Feb 9, 2026-6pm CST Feb 15, 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