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

  • Today

    Today: Rain, mainly after noon. High near 52. Calm wind becoming east 5 to 9 mph in the afternoon. Chance of precipitation is 100%.

    High: 52 °F

    Chance Rain
    then Rain

  • Tonight

    Tonight: Rain. Steady temperature around 47. East wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.

    Low: 47 °F

    Rain

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 57. North northeast wind 6 to 10 mph.

    High: 57 °F

    Chance Rain
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Light and variable wind.

    Low: 37 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 60. Calm wind becoming south 5 to 7 mph in the morning.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. South wind 5 to 7 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. South wind 7 to 16 mph, with gusts as high as 24 mph.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 30 mph.

    Low: 55 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 70. West southwest wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 70 °F

    Partly Sunny

Detailed Forecast

Today
Rain, mainly after noon. High near 52. Calm wind becoming east 5 to 9 mph in the afternoon. Chance of precipitation is 100%.
Tonight
Rain. Steady temperature around 47. East wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.
Sunday
A 40 percent chance of rain, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 57. North northeast wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 37. Light and variable wind.
Washington's Birthday
Mostly sunny, with a high near 60. Calm wind becoming south 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, with a low around 44. South wind 5 to 7 mph.
Tuesday
Mostly cloudy, with a high near 64. South wind 7 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 55. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 30 mph.
Wednesday
Partly sunny, with a high near 70. West southwest wind 10 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 48. Southwest wind 6 to 8 mph.
Thursday
A chance of rain. Mostly sunny, with a high near 68. South wind 7 to 14 mph, with gusts as high as 22 mph.
Thursday Night
A slight chance of rain and thunderstorms. Mostly cloudy, with a low around 43. West southwest wind around 11 mph, with gusts as high as 21 mph.
Friday
Partly sunny, with a high near 57. West wind 8 to 13 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.23°N 89.03°W
Last Update:
4:52 am CST Feb 14, 2026
Forecast Valid:
5am CST Feb 14, 2026-6pm CST Feb 20, 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