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

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 40. East wind around 8 mph.

    High: 40 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 26. East wind 3 to 8 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Mostly Sunny

  • Monday Night

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

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. West northwest wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain showers before 3am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 33. North wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Showers then
    Slight Chance
    Rain/Snow

  • Wednesday

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

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. Light and variable wind.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after noon. Mostly cloudy, with a high near 45. East wind 3 to 6 mph.

    High: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 40. East wind around 8 mph.
Tonight
Partly cloudy, with a low around 26. East wind 3 to 8 mph.
Monday
Mostly sunny, with a high near 50. Calm wind.
Monday Night
Mostly clear, with a low around 38. Calm wind becoming south around 6 mph in the evening.
Tuesday
Mostly sunny, with a high near 60. West northwest wind 5 to 7 mph becoming light and variable in the afternoon.
Tuesday Night
A slight chance of rain showers before 3am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 33. North wind 3 to 5 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 49. North wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 30. Light and variable wind.
Thursday
A slight chance of showers after noon. Mostly cloudy, with a high near 45. East wind 3 to 6 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 32. East wind 3 to 5 mph.
Friday
A slight chance of showers. Partly sunny, with a high near 45. East wind 5 to 7 mph.
Friday Night
A chance of showers. Partly cloudy, with a low around 30. East wind 5 to 7 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 47. East southeast wind 6 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:
2:22 pm CST Feb 8, 2026
Forecast Valid:
2pm 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