Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fog/Mist

57°F

14°C

Humidity 96%
Wind Speed Calm
Barometer 29.97 in (1015.0 mb)
Dewpoint 56°F (13°C)
Visibility 6.00 mi
Last update 19 Jun 3:56 am CDT
Extended Forecast for

4 Miles NNE Waltonville IL

  • Juneteenth

    Juneteenth: Sunny, with a high near 84. Light north northwest wind.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Light and variable wind.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 10am.  High near 86. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 90%.

    High: 86 °F

    Showers
    Likely then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm.  Low around 69. Southwest wind 11 to 15 mph, with gusts as high as 22 mph.  Chance of precipitation is 90%.

    Low: 69 °F

    T-storms then
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 81. Northwest wind 9 to 11 mph.

    High: 81 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. North wind 5 to 8 mph becoming calm  in the evening.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

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

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 84. Light north northwest wind.
Tonight
Partly cloudy, with a low around 64. Calm wind.
Saturday
Mostly sunny, with a high near 88. Light and variable wind.
Saturday Night
Mostly clear, with a low around 67. Calm wind.
Sunday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 86. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm. Low around 69. Southwest wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Monday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81. Northwest wind 9 to 11 mph.
Monday Night
Partly cloudy, with a low around 61. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Light north wind.
Tuesday Night
Mostly clear, with a low around 62. Calm wind.
Wednesday
Mostly sunny, with a high near 84. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 63. Calm wind.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Light and variable wind.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Waltonville IL
 38.27°N 89°W
1:26 am CDT Jun 19, 2026
4am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database