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.

Overcast

24°F

-4°C

Humidity 57%
Wind Speed NE 7 mph
Barometer 30.28 in (1026.4 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 29 Jan 1:56 am CST
Extended Forecast for

Mount Vernon IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 15. Light and variable wind.

    Low: 15 °F

    Mostly Cloudy

  • Thursday

    Thursday: Scattered flurries after noon. Mostly cloudy, with a high near 24. East northeast wind 3 to 7 mph.

    High: 24 °F

    Scattered
    Flurries

  • Thursday Night

    Thursday Night: Scattered snow showers, mainly between midnight and 3am. Mostly cloudy, with a low around 9. North northeast wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 9 °F

    Scattered
    Snow Showers

  • Friday

    Friday: Partly sunny, with a high near 19. North wind 5 to 9 mph.

    High: 19 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 4. North wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 4 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 18. Northwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 18 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 1. Northwest wind around 6 mph becoming calm in the evening.

    Low: 1 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 26. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 26 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of snow showers before midnight. Mostly cloudy, with a low around 16. South southwest wind 3 to 5 mph.

    Low: 16 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 15. Light and variable wind.
Thursday
Scattered flurries after noon. Mostly cloudy, with a high near 24. East northeast wind 3 to 7 mph.
Thursday Night
Scattered snow showers, mainly between midnight and 3am. Mostly cloudy, with a low around 9. North northeast wind 3 to 5 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 19. North wind 5 to 9 mph.
Friday Night
Partly cloudy, with a low around 4. North wind 6 to 9 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 18. Northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 1. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 26. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
A slight chance of snow showers before midnight. Mostly cloudy, with a low around 16. South southwest wind 3 to 5 mph.
Monday
Partly sunny, with a high near 34. West southwest wind 5 to 7 mph.
Monday Night
Mostly cloudy, with a low around 22. Light west southwest wind.
Tuesday
Mostly cloudy, with a high near 35. Calm wind becoming south 5 to 7 mph.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 23. Light and variable wind becoming north northeast around 6 mph after midnight.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 35. North northwest wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
1:11 am CST Jan 29, 2026
Forecast Valid:
2am CST Jan 29, 2026-6pm CST Feb 4, 2026
 
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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