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

54°F

12°C

Humidity 83%
Wind Speed SW 10 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 4 Nov 11:56 pm CST
Extended Forecast for

3 Miles E Mount Vernon IL

  • Overnight

    Overnight: Partly cloudy, with a low around 50. South southwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71. Southwest wind 9 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 37. North wind around 6 mph becoming light and variable in the evening.

    Low: 37 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Light and variable wind becoming southeast 5 to 10 mph in the morning.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 49. Southeast wind 7 to 14 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.

    Low: 49 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. South southwest wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. West wind 5 to 7 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 68. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly before midnight. Partly cloudy, with a low around 38. South southwest wind 7 to 11 mph becoming west northwest after midnight.

    Low: 38 °F

    Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 50. South southwest wind around 11 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 71. Southwest wind 9 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
Clear, with a low around 37. North wind around 6 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 64. Light and variable wind becoming southeast 5 to 10 mph in the morning.
Thursday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 49. Southeast wind 7 to 14 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.
Friday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. South southwest wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 42. West wind 5 to 7 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 68. Calm wind becoming south southwest 5 to 9 mph in the morning.
Saturday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 38. South southwest wind 7 to 11 mph becoming west northwest after midnight.
Sunday
Partly sunny, with a high near 48. Northwest wind 13 to 17 mph, with gusts as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 25. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 44. Northwest wind 7 to 11 mph.
Monday Night
Mostly clear, with a low around 23. West northwest wind around 6 mph becoming light and variable.
Veterans Day
Mostly sunny, with a high near 51. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Mount Vernon IL
 38.33°N 88.86°W
Last Update:
10:01 pm CST Nov 4, 2025
Forecast Valid:
12am CST Nov 5, 2025-6pm CST Nov 11, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation