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.

Overcast

66°F

19°C

Humidity 84%
Wind Speed S 18 G 25 mph
Barometer 29.85 in (1011.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 9 Mar 3:56 pm CDT
Extended Forecast for

4 Miles NNE Waltonville IL

  • This Afternoon

    This Afternoon: Partly sunny, with a steady temperature around 70. Southwest wind around 11 mph, with gusts as high as 24 mph.

    High: 70 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. South southwest wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 61 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 10 percent chance of showers after 5pm. Partly sunny, with a high near 79. South southwest wind 7 to 16 mph, with gusts as high as 24 mph.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 63. South southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    Low: 63 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 70. South southwest wind 15 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%.

    High: 70 °F

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. North northwest wind 8 to 17 mph, with gusts as high as 26 mph.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 53. North northwest wind around 6 mph becoming west southwest in the afternoon.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 42. South wind 5 to 10 mph increasing to 11 to 16 mph after midnight. Winds could gust as high as 28 mph.

    Low: 42 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 65 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a steady temperature around 70. Southwest wind around 11 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 61. South southwest wind 8 to 13 mph, with gusts as high as 22 mph.
Tuesday
A 10 percent chance of showers after 5pm. Partly sunny, with a high near 79. South southwest wind 7 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 63. South southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 70. South southwest wind 15 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 33. North northwest wind 8 to 17 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 53. North northwest wind around 6 mph becoming west southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 42. South wind 5 to 10 mph increasing to 11 to 16 mph after midnight. Winds could gust as high as 28 mph.
Friday
Mostly cloudy, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 40. North northwest wind around 5 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 68. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 52. South southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Sunday
A chance of showers. Partly sunny, with a high near 65. Breezy, with a south southwest wind 14 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Waltonville IL
 38.27°N 89°W
Last Update:
3:01 pm CDT Mar 9, 2026
Forecast Valid:
4pm CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation