Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Overcast

30°F

-1°C

Humidity 58%
Wind Speed NW 9 mph
Barometer 30.31 in (1027.2 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 11 Jan 4:56 am CST
Extended Forecast for

Mount Vernon IL

  • Overnight

    Overnight: A slight chance of flurries.  Mostly cloudy, with a low around 27. West northwest wind around 15 mph, with gusts as high as 32 mph.

    Low: 27 °F

    Slight Chance
    Flurries

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 38. Northwest wind 6 to 15 mph, with gusts as high as 32 mph.

    High: 38 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26. Calm wind becoming southwest around 6 mph after midnight.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 50. Southwest wind 6 to 10 mph.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. South southwest wind 5 to 8 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after midnight.  Mostly cloudy, with a low around 38. West wind 6 to 8 mph.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers after noon.  Mostly cloudy, with a high near 43. Northwest wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 43 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. North northwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of flurries. Mostly cloudy, with a low around 27. West northwest wind around 15 mph, with gusts as high as 32 mph.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 38. Northwest wind 6 to 15 mph, with gusts as high as 32 mph.
Sunday Night
Mostly clear, with a low around 26. Calm wind becoming southwest around 6 mph after midnight.
Monday
Sunny, with a high near 50. Southwest wind 6 to 10 mph.
Monday Night
Partly cloudy, with a low around 35. South southwest wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 59. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 38. West wind 6 to 8 mph.
Wednesday
A slight chance of showers after noon. Mostly cloudy, with a high near 43. Northwest wind 7 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly cloudy, with a low around 19. North northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 37. West northwest wind 5 to 8 mph becoming light and variable in the afternoon.
Thursday Night
Mostly cloudy, with a low around 26. Light south southwest wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 18 mph.
Friday
Partly sunny, with a high near 42. West wind 7 to 14 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 23. West wind 6 to 8 mph.
Saturday
Partly sunny, with a high near 34. West wind 7 to 11 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
4:57 am CST Jan 11, 2026
5am CST Jan 11, 2026-6pm CST Jan 17, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database