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: Mostly clear, with a low around 28. Calm wind becoming west around 5 mph.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog between 7am and 8am. Otherwise, increasing clouds, with a high near 63. West southwest wind 6 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 29. North wind 6 to 8 mph.

    Low: 29 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 48. North northwest wind 3 to 6 mph.

    High: 48 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

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

    High: 45 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 32. Light east wind.

    Low: 32 °F

    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 47. East wind 3 to 6 mph.

    High: 47 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers after midnight. Mostly cloudy, with a low around 34. East wind 3 to 7 mph.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 28. Calm wind becoming west around 5 mph.
Tuesday
Patchy fog between 7am and 8am. Otherwise, increasing clouds, with a high near 63. West southwest wind 6 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 29. North wind 6 to 8 mph.
Wednesday
Sunny, with a high near 48. North northwest wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 30. Calm wind.
Thursday
Mostly cloudy, with a high near 45. Calm wind becoming east southeast around 6 mph in the afternoon.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 32. Light east wind.
Friday
Partly sunny, with a high near 47. East wind 3 to 6 mph.
Friday Night
A chance of showers after midnight. Mostly cloudy, with a low around 34. East wind 3 to 7 mph.
Saturday
Showers likely, mainly after noon. Cloudy, with a high near 48. East wind 7 to 11 mph.
Saturday Night
Showers. Cloudy, with a low around 39. East wind around 11 mph, with gusts as high as 21 mph.
Sunday
A chance of showers. Partly sunny, with a high near 52. Northeast wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 34. Northwest wind 3 to 7 mph.
Washington's Birthday
Mostly sunny, with a high near 57. Light and variable wind becoming south 5 to 8 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
3:12 am CST Feb 10, 2026
Forecast Valid:
3am CST Feb 10, 2026-6pm CST Feb 16, 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