Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

62°F

17°C

Humidity 96%
Wind Speed Calm
Barometer 30.02 in (1016.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 20 Jun 12:56 am CDT
Extended Forecast for

4 Miles NW Mount Vernon IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 86. Light northwest wind.

    High: 86 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm.  Mostly cloudy, with a high near 85. Light and variable wind becoming south 13 to 18 mph in the morning. Winds could gust as high as 26 mph.  Chance of precipitation is 60%.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 4am, then showers likely.  Low around 67. South southwest wind 9 to 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%.

    Low: 67 °F

    T-storms then
    Showers

  • Monday

    Monday: A 30 percent chance of showers before 1pm.  Partly sunny, with a high near 79. North northwest wind around 9 mph.

    High: 79 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. North wind 5 to 7 mph becoming calm  in the evening.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Calm wind.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. Calm wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 86. Light northwest wind.
Saturday Night
Partly cloudy, with a low around 67. Calm wind.
Sunday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 85. Light and variable wind becoming south 13 to 18 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Sunday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 67. South southwest wind 9 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.
Monday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 79. North northwest wind around 9 mph.
Monday Night
Partly cloudy, with a low around 61. North wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Calm wind.
Tuesday Night
Mostly clear, with a low around 62. Calm wind.
Wednesday
Sunny, with a high near 83. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 63. Calm wind.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Calm wind becoming west northwest around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. Light north wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Mount Vernon IL
 38.36°N 88.94°W
1:26 am CDT Jun 20, 2026
1am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database