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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

80°F

27°C

Humidity 42%
Wind Speed S 20 G 28 mph
Barometer 30.05 in (1017.7 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 12 Apr 2:56 pm CDT
Extended Forecast for

Waltonville IL

  • This Afternoon

    This Afternoon: A slight chance of showers between 4pm and 5pm. Mostly cloudy, with a high near 81. South southwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 65. South southwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 82. South southwest wind 14 to 18 mph, with gusts as high as 25 mph.

    High: 82 °F

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. South southwest wind 14 to 16 mph, with gusts as high as 25 mph.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 84. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 26 mph.

    High: 84 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 69. South southwest wind 11 to 15 mph, with gusts as high as 24 mph.

    Low: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. South southwest wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South southwest wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 65 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81. South southwest wind 9 to 11 mph.

    High: 81 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of showers between 4pm and 5pm. Mostly cloudy, with a high near 81. South southwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tonight
A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 65. South southwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Monday
A 30 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 82. South southwest wind 14 to 18 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 68. South southwest wind 14 to 16 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 84. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 26 mph.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 69. South southwest wind 11 to 15 mph, with gusts as high as 24 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. South southwest wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South southwest wind 10 to 13 mph, with gusts as high as 21 mph.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81. South southwest wind 9 to 11 mph.
Thursday Night
Mostly clear, with a low around 62. South wind around 6 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. South wind 6 to 14 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 11 mph, with gusts as high as 21 mph.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. South southwest wind 13 to 15 mph, with gusts as high as 22 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.23°N 89.06°W
Last Update:
2:02 pm CDT Apr 12, 2026
Forecast Valid:
3pm CDT Apr 12, 2026-6pm CDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation