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

61°F

16°C

Humidity 60%
Wind Speed SE 6 mph
Barometer 30.16 in (1021.8 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 6 Oct 8:56 am CDT
Extended Forecast for

3 Miles NW Mount Vernon IL

  • Today

    Today: Sunny, with a high near 78. Southeast wind 3 to 6 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 51. Calm wind.

    Low: 51 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind becoming west southwest 5 to 8 mph in the morning.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 56. Light and variable wind.

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Calm wind becoming north 5 to 7 mph in the morning.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. North wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Calm wind becoming east southeast around 6 mph in the morning.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. East southeast wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86. Light southeast wind becoming south southeast 6 to 11 mph in the morning.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 78. Southeast wind 3 to 6 mph.
Tonight
Clear, with a low around 51. Calm wind.
Wednesday
Sunny, with a high near 88. Calm wind becoming west southwest 5 to 8 mph in the morning.
Wednesday Night
Clear, with a low around 56. Light and variable wind.
Thursday
Sunny, with a high near 83. Calm wind becoming north 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 51. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 82. Calm wind becoming east southeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 53. East southeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 86. Light southeast wind becoming south southeast 6 to 11 mph in the morning.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 58. East southeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 79. Light east southeast wind becoming east northeast 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 58. Light south wind.
Columbus Day
Mostly sunny, with a high near 86. Calm wind becoming south 5 to 8 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Mount Vernon IL
 38.36°N 88.97°W
Last Update:
5:21 am CDT Oct 6, 2026
Forecast Valid:
9am CDT Oct 6, 2026-6pm CDT Oct 12, 2026
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation