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

50°F

10°C

Humidity 93%
Wind Speed Calm
Barometer 29.99 in (1016.0 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 7 Oct 7:56 am CDT
Extended Forecast for

3 Miles W Mount Vernon IL

  • Today

    Today: Sunny, with a high near 88. Light south southwest wind becoming west southwest 6 to 11 mph in the morning.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 55. Light and variable wind.

    Low: 55 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 53. Calm wind.

    Low: 53 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87. Calm wind becoming south southeast 5 to 9 mph in the morning.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. South southeast wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Light south wind becoming south southeast 6 to 11 mph in the morning.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. Southeast wind around 7 mph.

    Low: 57 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly before 1pm. Partly sunny, with a high near 79. East northeast wind 9 to 14 mph becoming north northwest in the afternoon.

    High: 79 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 88. Light south southwest wind becoming west southwest 6 to 11 mph in the morning.
Tonight
Clear, with a low around 55. Light and variable wind.
Thursday
Sunny, with a high near 85. Light and variable wind.
Thursday Night
Clear, with a low around 53. Calm wind.
Friday
Sunny, with a high near 87. Calm wind becoming south southeast 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 58. South southeast wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 85. Light south wind becoming south southeast 6 to 11 mph in the morning.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. Southeast wind around 7 mph.
Sunday
A chance of showers, mainly before 1pm. Partly sunny, with a high near 79. East northeast wind 9 to 14 mph becoming north northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 56. North wind around 5 mph becoming calm in the evening.
Columbus Day
Mostly sunny, with a high near 83. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 57. South wind 3 to 5 mph.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 83. Southwest wind 5 to 13 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Mount Vernon IL
 38.31°N 88.97°W
Last Update:
3:36 am CDT Oct 7, 2026
Forecast Valid:
8am CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
Forecast Discussion
 
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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