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 Calm
Barometer 30.10 in
Dewpoint N/A
Visibility 10.00 mi
Last update 17 Nov 4:56 am CST
Extended Forecast for

Waltonville IL

  • Today

    Today: Sunny, with a high near 61. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 47. Southeast wind 7 to 10 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Chance
    T-storms then
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 72. South southeast wind 7 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 47. North northeast wind 3 to 6 mph.

    Low: 47 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 62. North northeast wind 3 to 5 mph.

    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, with thunderstorms also possible after noon. High near 66. East southeast wind 5 to 9 mph becoming south southwest in the afternoon. Chance of precipitation is 90%.

    High: 66 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Cloudy, with a low around 56. South southwest wind 6 to 9 mph.

    Low: 56 °F

    Showers

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 67. South wind 9 to 13 mph becoming west in the afternoon.

    High: 67 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 61. Light east wind becoming southeast 5 to 10 mph in the morning.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 47. Southeast wind 7 to 10 mph. Chance of precipitation is 80%.
Tuesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 72. South southeast wind 7 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 47. North northeast wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 62. North northeast wind 3 to 5 mph.
Wednesday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 48. Light and variable wind.
Thursday
Showers, with thunderstorms also possible after noon. High near 66. East southeast wind 5 to 9 mph becoming south southwest in the afternoon. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 56. South southwest wind 6 to 9 mph.
Friday
Showers likely. Mostly cloudy, with a high near 67. South wind 9 to 13 mph becoming west 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 45. Northwest wind 6 to 9 mph.
Saturday
Partly sunny, with a high near 58. Northwest wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 40. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A slight chance of showers. Mostly sunny, with a high near 59. Calm wind becoming west 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.2°N 89.03°W
Last Update:
3:16 am CST Nov 17, 2025
Forecast Valid:
5am CST Nov 17, 2025-6pm CST Nov 23, 2025
 
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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