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

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Waltonville IL

  • Overnight

    Overnight: Mostly clear, with a low around 29. North northwest wind around 6 mph.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 48. North northwest wind 5 to 8 mph.

    High: 48 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 29. Light and variable wind.

    Low: 29 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 48. Calm wind becoming southeast around 5 mph.

    High: 48 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 54. Calm wind becoming south southeast around 6 mph.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. Light southeast wind.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, mainly after noon. Mostly cloudy, with a high near 52. East southeast wind 3 to 7 mph.

    High: 52 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 41. East wind 6 to 8 mph.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 29. North northwest wind around 6 mph.
Wednesday
Sunny, with a high near 48. North northwest wind 5 to 8 mph.
Wednesday Night
Increasing clouds, with a low around 29. Light and variable wind.
Thursday
Mostly cloudy, with a high near 48. Calm wind becoming southeast around 5 mph.
Thursday Night
Mostly cloudy, with a low around 31. Calm wind.
Friday
Mostly sunny, with a high near 54. Calm wind becoming south southeast around 6 mph.
Friday Night
Mostly cloudy, with a low around 36. Light southeast wind.
Saturday
A chance of showers, mainly after noon. Mostly cloudy, with a high near 52. East southeast wind 3 to 7 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 41. East wind 6 to 8 mph.
Sunday
A chance of showers before noon. Mostly sunny, with a high near 54. North wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 38. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 58. South southeast wind 3 to 8 mph.
Monday Night
Mostly cloudy, with a low around 44. South wind 6 to 9 mph.
Tuesday
Mostly cloudy, with a high near 62. South wind 9 to 16 mph, with gusts as high as 23 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.23°N 89.06°W
Last Update:
1:41 am CST Feb 11, 2026
Forecast Valid:
3am CST Feb 11, 2026-6pm CST Feb 17, 2026
 
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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