Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fog/Mist

53°F

12°C

Humidity 96%
Wind Speed Calm
Barometer 30.01 in (1016.5 mb)
Dewpoint 52°F (11°C)
Visibility 1.50 mi
Last update 11 Oct 6:56 am CDT
Extended Forecast for

3 Miles S Mount Vernon IL

  • Today

    Today: Sunny, with a high near 86. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Light and variable wind.

    Low: 60 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Mostly cloudy, then gradually becoming sunny, with a high near 93. Light south southwest wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 18 mph.

    High: 93 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Clear, with a low around 66. Southwest wind 7 to 9 mph.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Southwest wind 7 to 11 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 68. South southwest wind 3 to 6 mph.

    Low: 68 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm.  Partly sunny, with a high near 86. Calm wind becoming west northwest 5 to 8 mph in the morning.  Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 63. East northeast wind 3 to 7 mph.

    Low: 63 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 82. East wind 8 to 13 mph becoming south southwest in the afternoon.

    High: 82 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 86. Calm wind becoming northwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 60. Light and variable wind.
Columbus Day
Mostly cloudy, then gradually becoming sunny, with a high near 93. Light south southwest wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Clear, with a low around 66. Southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 94. Southwest wind 7 to 11 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. South southwest wind 3 to 6 mph.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. Calm wind becoming west northwest 5 to 8 mph in the morning. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. East northeast wind 3 to 7 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. East wind 8 to 13 mph becoming south southwest in the afternoon.
Thursday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 54. South wind 7 to 11 mph becoming west northwest after midnight.
Friday
A slight chance of showers. Partly sunny, with a high near 70. Breezy, with a northwest wind 16 to 22 mph.
Friday Night
Partly cloudy, with a low around 42. Breezy, with a north northwest wind 10 to 20 mph.
Saturday
Mostly sunny, with a high near 62. North wind 13 to 16 mph, with gusts as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Mount Vernon IL
 38.29°N 88.92°W
4:56 am CDT Oct 11, 2026
7am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database