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.

Fair

62°F

17°C

Humidity 56%
Wind Speed Calm
Barometer 29.90 in (1013.0 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 5 Nov 4:56 pm CST
Extended Forecast for

Waltonville IL

  • Tonight

    Tonight: Increasing clouds, with a low around 44. Light and variable wind becoming northwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 55. North northwest wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 55 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Widespread frost, mainly after 3am. Otherwise, clear, with a low around 30. North wind around 6 mph becoming calm in the evening.

    Low: 30 °F

    Frost

  • Saturday

    Saturday: Widespread frost before 8am. Otherwise, sunny, with a high near 55. Calm wind becoming north northwest around 5 mph.

    High: 55 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 61. Calm wind becoming west southwest around 6 mph.

    High: 61 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 2am. Otherwise, clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Areas of frost before 7am. Otherwise, sunny, with a high near 67. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 67 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 37. South southwest wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 44. Light and variable wind becoming northwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 55. North northwest wind 9 to 13 mph, with gusts as high as 22 mph.
Friday Night
Widespread frost, mainly after 3am. Otherwise, clear, with a low around 30. North wind around 6 mph becoming calm in the evening.
Saturday
Widespread frost before 8am. Otherwise, sunny, with a high near 55. Calm wind becoming north northwest around 5 mph.
Saturday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 30. Calm wind.
Sunday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 61. Calm wind becoming west southwest around 6 mph.
Sunday Night
Patchy frost after 2am. Otherwise, clear, with a low around 34. Calm wind.
Monday
Areas of frost before 7am. Otherwise, sunny, with a high near 67. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Clear, with a low around 37. South southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 67. Calm wind becoming west around 5 mph.
Tuesday Night
Clear, with a low around 37. Calm wind.
Veterans Day
Sunny, with a high near 65. Calm wind becoming northwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 38. Calm wind.
Thursday
Sunny, with a high near 63. Calm wind becoming northwest 5 to 8 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.23°N 89.03°W
Last Update:
4:21 pm CST Nov 5, 2026
Forecast Valid:
5pm CST Nov 5, 2026-6pm CST Nov 12, 2026
 
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