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Hazardous Weather Conditions

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

  • This Afternoon

    This Afternoon: Mostly sunny, with a steady temperature around 52. East northeast wind 6 to 9 mph becoming north. Winds could gust as high as 20 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog between 2am and 5am. Otherwise, partly cloudy, with a low around 37. North wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear
    then Patchy
    Fog

  • Washington's Birthday

    Washington's Birthday: Patchy fog between 7am and 9am. Otherwise, partly sunny, with a high near 61. Light southwest wind becoming south southwest 5 to 10 mph in the morning.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. South wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 63. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 63 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 57. Breezy, with a south southwest wind 17 to 22 mph, with gusts as high as 36 mph.

    Low: 57 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 31 mph.

    High: 72 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. South southwest wind 5 to 8 mph.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. South wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 72 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a steady temperature around 52. East northeast wind 6 to 9 mph becoming north. Winds could gust as high as 20 mph.
Tonight
Patchy fog between 2am and 5am. Otherwise, partly cloudy, with a low around 37. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Patchy fog between 7am and 9am. Otherwise, partly sunny, with a high near 61. Light southwest wind becoming south southwest 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 41. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 63. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 57. Breezy, with a south southwest wind 17 to 22 mph, with gusts as high as 36 mph.
Wednesday
Mostly sunny, with a high near 72. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 49. South southwest wind 5 to 8 mph.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. South wind 6 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 42. South southwest wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Friday
A chance of showers. Partly sunny, with a high near 55. West wind 8 to 11 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 33. North northwest wind around 7 mph.
Saturday
A slight chance of showers. Partly sunny, with a high near 49. North northwest wind 6 to 9 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:
1:57 pm CST Feb 15, 2026
Forecast Valid:
2pm CST Feb 15, 2026-6pm CST Feb 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation