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

N/A

Humidity NA
Wind Speed Vrbl 7 mph
Barometer 30.06 in
Dewpoint N/A
Visibility 10.00 mi
Last update 17 Nov 12:56 pm CST
Extended Forecast for

Waltonville IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. Southeast wind 7 to 9 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 9pm. Increasing clouds, with a steady temperature around 53. East southeast wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.

    Low: 53 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before 1pm. High near 70. South wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%.

    High: 70 °F

    Showers then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 48. North wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 62. Light north wind.

    High: 62 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 9am. High near 66. Light and variable wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 90%.

    High: 66 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Cloudy, with a low around 55. South southwest wind 5 to 7 mph becoming east southeast after midnight.

    Low: 55 °F

    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 65. East wind 7 to 11 mph becoming southwest in the afternoon.

    High: 65 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 61. Southeast wind 7 to 9 mph.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 9pm. Increasing clouds, with a steady temperature around 53. East southeast wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
Tuesday
Showers and thunderstorms, mainly before 1pm. High near 70. South wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Tuesday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 48. North wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy, with a high near 62. Light north wind.
Wednesday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 48. Light and variable wind.
Thursday
Showers likely, then showers and possibly a thunderstorm after 9am. High near 66. Light and variable wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 55. South southwest wind 5 to 7 mph becoming east southeast after midnight.
Friday
Showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 65. East wind 7 to 11 mph becoming southwest in the afternoon.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 44. North wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 58. Northwest wind 5 to 9 mph.
Saturday Night
Partly cloudy, with a low around 39. Light northwest wind.
Sunday
Mostly sunny, with a high near 60. Calm wind becoming west southwest 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.23°N 89.03°W
Last Update:
1:06 pm CST Nov 17, 2025
Forecast Valid:
1pm CST Nov 17, 2025-6pm CST Nov 23, 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