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.

Light Rain

68°F

20°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.96 in (1014.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 13 Jun 3:56 am CDT
Extended Forecast for

Waltonville IL

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am. Cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Friday

    Friday: Showers and thunderstorms. High near 81. Calm wind becoming south southeast 5 to 9 mph in the morning. Chance of precipitation is 80%.

    High: 81 °F

    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 1am, then a slight chance of showers. Mostly cloudy, with a low around 69. South wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 69 °F

    T-storms
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Light and variable wind becoming west around 6 mph in the morning. Chance of precipitation is 70%.

    High: 82 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 68. North northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 85 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light south southwest wind.

    Low: 70 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am. Cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.
Friday
Showers and thunderstorms. High near 81. Calm wind becoming south southeast 5 to 9 mph in the morning. Chance of precipitation is 80%.
Friday Night
Showers and thunderstorms likely before 1am, then a slight chance of showers. Mostly cloudy, with a low around 69. South wind 3 to 6 mph. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Light and variable wind becoming west around 6 mph in the morning. Chance of precipitation is 70%.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 68. North northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 69. Calm wind.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. Calm wind becoming south southwest around 5 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light south southwest wind.
Tuesday
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Light south southwest wind increasing to 5 to 9 mph in the morning.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 7 mph.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South southwest wind 6 to 9 mph.
Juneteenth
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. West southwest wind 6 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.23°N 89.03°W
Last Update:
2:31 am CDT Jun 13, 2025
Forecast Valid:
4am CDT Jun 13, 2025-6pm CDT Jun 19, 2025
 
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