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.

Overcast

N/A

Humidity NA
Wind Speed Calm
Barometer 30.05 in
Dewpoint N/A
Visibility 8.00 mi
Last update 7 Dec 12:56 pm CST
Extended Forecast for

Mount Vernon IL

  • This Afternoon

    This Afternoon: A slight chance of drizzle before 5pm. Mostly cloudy, with a high near 44. North wind 7 to 10 mph.

    High: 44 °F

    Slight Chance
    Drizzle

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. North northeast wind 6 to 10 mph.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 37. North wind around 6 mph becoming calm in the afternoon.

    High: 37 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. Light south southeast wind becoming south southwest 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. West southwest wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 28. Northwest wind around 6 mph becoming calm.

    Low: 28 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow. Mostly cloudy, with a high near 38. East wind 5 to 8 mph becoming north in the afternoon.

    High: 38 °F

    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
A slight chance of drizzle before 5pm. Mostly cloudy, with a high near 44. North wind 7 to 10 mph.
Tonight
Mostly cloudy, with a low around 24. North northeast wind 6 to 10 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 37. North wind around 6 mph becoming calm in the afternoon.
Monday Night
Partly cloudy, with a low around 24. Light south southeast wind becoming south southwest 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 49. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 41. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.
Wednesday
Partly sunny, with a high near 50. West southwest wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
A slight chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 28. Northwest wind around 6 mph becoming calm.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 38. East wind 5 to 8 mph becoming north in the afternoon.
Thursday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 18. North northwest wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 27. Northwest wind 9 to 13 mph, with gusts as high as 18 mph.
Friday Night
Mostly cloudy, with a low around 7. Northwest wind 8 to 10 mph.
Saturday
Partly sunny, with a high near 22. West northwest wind 6 to 9 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
10:56 am CST Dec 7, 2025
Forecast Valid:
1pm CST Dec 7, 2025-6pm CST Dec 13, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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