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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

19°F

-7°C

Humidity 81%
Wind Speed Calm
Barometer 30.33 in (1028.2 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 22 Jan 9:56 pm CST
Extended Forecast for

Mount Vernon IL

Cold Weather Advisory January 23, 06:00pm until January 25, 06:00pm
Winter Storm Warning January 24, 12:00am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • Tonight

    Tonight: Partly cloudy, with a low around 11. Light north northwest wind becoming north 9 to 14 mph after midnight. Winds could gust as high as 25 mph.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a temperature falling to around 11 by 8am. Wind chill values as low as -5. North wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 17 °F⇓

    Partly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 5. Wind chill values as low as -10. North northeast wind around 11 mph, with gusts as high as 20 mph.

    Low: 5 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Snow before 3pm, then snow, possibly mixed with sleet. High near 15. Wind chill values as low as -10. Northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 15 °F

    Snow Likely
    then
    Snow/Sleet

  • Saturday Night

    Saturday Night: Snow, possibly mixed with sleet, becoming all snow after 9pm. Low around 11. Northeast wind 8 to 10 mph. Chance of precipitation is 90%.

    Low: 11 °F

    Snow/Sleet
    then Snow

  • Sunday

    Sunday: Snow, mainly before noon. High near 18. North northwest wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

    High: 18 °F

    Snow then
    Chance Snow

  • Sunday Night

    Sunday Night: A slight chance of snow before 8pm, then a slight chance of snow showers between 8pm and midnight. Mostly cloudy, with a low around 3. Northwest wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    Low: 3 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 15. West northwest wind 6 to 9 mph.

    High: 15 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 2. South southwest wind around 6 mph.

    Low: 2 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 11. Light north northwest wind becoming north 9 to 14 mph after midnight. Winds could gust as high as 25 mph.
Friday
Partly sunny, with a temperature falling to around 11 by 8am. Wind chill values as low as -5. North wind 13 to 15 mph, with gusts as high as 25 mph.
Friday Night
Increasing clouds, with a low around 5. Wind chill values as low as -10. North northeast wind around 11 mph, with gusts as high as 20 mph.
Saturday
Snow before 3pm, then snow, possibly mixed with sleet. High near 15. Wind chill values as low as -10. Northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Snow, possibly mixed with sleet, becoming all snow after 9pm. Low around 11. Northeast wind 8 to 10 mph. Chance of precipitation is 90%.
Sunday
Snow, mainly before noon. High near 18. North northwest wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Sunday Night
A slight chance of snow before 8pm, then a slight chance of snow showers between 8pm and midnight. Mostly cloudy, with a low around 3. Northwest wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 15. West northwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 2. South southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 30. Southwest wind 5 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 14. Light southwest wind.
Wednesday
Partly sunny, with a high near 26. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 4. North northwest wind around 6 mph.
Thursday
Partly sunny, with a high near 19. Northwest wind 6 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:
9:46 pm CST Jan 22, 2026
Forecast Valid:
10pm CST Jan 22, 2026-6pm CST Jan 29, 2026
 
Forecast Discussion
 
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Additional Resources

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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