National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

78°F

26°C

Humidity 48%
Wind Speed SW 16 mph
Barometer 29.78 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 26 Mar 8:56 pm CDT
Extended Forecast for

Waltonville IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 42. West southwest wind 13 to 17 mph becoming north northeast after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    Low: 42 °F

    Partly Cloudy
    then Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely then
    Partly Sunny

  • Friday Night

    Friday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 31. North wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 31 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, sunny, with a high near 56. North northeast wind around 6 mph becoming southeast in the afternoon.

    High: 56 °F

    Patchy Frost
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. South southeast wind around 5 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 66. South wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 66 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 80. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 63. South wind 11 to 13 mph, with gusts as high as 24 mph.

    Low: 63 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 42. West southwest wind 13 to 17 mph becoming north northeast after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Friday
Showers and thunderstorms likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Friday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 31. North wind 6 to 13 mph, with gusts as high as 22 mph.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 56. North northeast wind around 6 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 39. South southeast wind around 5 mph.
Sunday
Partly sunny, with a high near 66. South wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 56. South wind 7 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 80. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Monday Night
Mostly cloudy, with a low around 63. South wind 11 to 13 mph, with gusts as high as 24 mph.
Tuesday
A slight chance of showers after 1pm. Partly sunny, with a high near 84. South southwest wind 13 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. South southwest wind 14 to 17 mph, with gusts as high as 25 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South wind around 14 mph, with gusts as high as 24 mph.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 72. South southwest wind around 15 mph, with gusts as high as 24 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.23°N 89.03°W
Last Update:
8:26 pm CDT Mar 26, 2026
Forecast Valid:
9pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation