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.

Fair

78°F

26°C

Humidity 47%
Wind Speed Calm
Barometer 30.21 in (1023.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 23 Jun 11:56 am CDT
Extended Forecast for

4 Miles NNE Macedonia IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. North wind 3 to 5 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 60. Light and variable wind.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly clear, with a low around 66. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 66 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 86 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 69. Light south southeast wind. Chance of precipitation is 80%.

    Low: 69 °F

    T-storms then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 84. Light south southwest wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 80%.

    High: 84 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Southwest wind 3 to 6 mph.

    Low: 71 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 88. Southwest wind 5 to 8 mph.

    High: 88 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 82. North wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 60. Light and variable wind.
Wednesday
Mostly sunny, with a high near 84. Calm wind becoming south southwest around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly clear, with a low around 66. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Thursday Night
Showers and possibly a thunderstorm. Low around 69. Light south southeast wind. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 84. Light south southwest wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Southwest wind 3 to 6 mph.
Saturday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 88. Southwest wind 5 to 8 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 6 mph.
Sunday
Sunny, with a high near 92. South wind 7 to 15 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 75. South wind 7 to 11 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 94. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Macedonia IL
 38.13°N 88.67°W
Last Update:
6:21 am CDT Jun 23, 2026
Forecast Valid:
12pm CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation