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.

A Few Clouds

N/A

Humidity NA
Wind Speed SW 18 G 25 mph
Barometer 29.74 in
Dewpoint N/A
Visibility 10.00 mi
Last update 15 Nov 10:56 am CST
Extended Forecast for

3 Miles E Mount Vernon IL

  • Today

    Today: Sunny, with a high near 78. Southwest wind 7 to 17 mph, with gusts as high as 26 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 43. West wind 7 to 9 mph becoming north after midnight.

    Low: 43 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 59. North wind 6 to 9 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 59. Calm wind becoming east southeast 5 to 8 mph in the morning.

    High: 59 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 45. East southeast wind 6 to 9 mph. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before noon. Partly sunny, with a high near 67. Southeast wind 8 to 11 mph becoming northwest in the afternoon.

    High: 67 °F

    Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 44. Northeast wind 3 to 7 mph.

    Low: 44 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly after noon. Partly sunny, with a high near 63. Northeast wind 5 to 7 mph becoming southeast in the morning.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 78. Southwest wind 7 to 17 mph, with gusts as high as 26 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 43. West wind 7 to 9 mph becoming north after midnight.
Sunday
Sunny, with a high near 59. North wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 33. Calm wind.
Monday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 59. Calm wind becoming east southeast 5 to 8 mph in the morning.
Monday Night
Showers and possibly a thunderstorm. Low around 45. East southeast wind 6 to 9 mph. Chance of precipitation is 80%.
Tuesday
A 30 percent chance of showers before noon. Partly sunny, with a high near 67. Southeast wind 8 to 11 mph becoming northwest in the afternoon.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 44. Northeast wind 3 to 7 mph.
Wednesday
A chance of showers, mainly after noon. Partly sunny, with a high near 63. Northeast wind 5 to 7 mph becoming southeast in the morning.
Wednesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 49. Southeast wind 3 to 6 mph.
Thursday
Showers and possibly a thunderstorm. Cloudy, with a high near 66. South southeast wind 6 to 11 mph.
Thursday Night
Showers likely. Mostly cloudy, with a low around 52. South southeast wind 7 to 9 mph.
Friday
A chance of showers. Mostly cloudy, with a high near 66. South southwest wind 10 to 13 mph, with gusts as high as 18 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Mount Vernon IL
 38.33°N 88.86°W
Last Update:
10:31 am CST Nov 15, 2025
Forecast Valid:
11am CST Nov 15, 2025-6pm CST Nov 21, 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