National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Mount Vernon IL

Extreme Cold Warning January 26, 11:23am until January 27, 10:00am
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning January 26, 11:23am until January 27, 10:00am

    NOW until 10:00am Tue

    Extreme Cold Warning

  • Today

    High: 12 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a temperature rising to around 10 by 5am. Wind chill values as low as -12. Light southwest wind becoming south southwest 6 to 11 mph in the evening. Winds could gust as high as 22 mph.

    Low: 3 °F⇑

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28. Wind chill values as low as -5. Southwest wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 28 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -5. Northwest wind around 5 mph becoming calm in the evening.

    Low: -5 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 25. Calm wind becoming west southwest 5 to 7 mph.

    High: 25 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 3. Calm wind.

    Low: 3 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 19. Calm wind becoming north around 5 mph.

    High: 19 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. Light north wind.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 12. Wind chill values as low as -8. West wind 5 to 9 mph.
Tonight
Mostly clear, with a temperature rising to around 10 by 5am. Wind chill values as low as -12. Light southwest wind becoming south southwest 6 to 11 mph in the evening. Winds could gust as high as 22 mph.
Tuesday
Mostly sunny, with a high near 28. Wind chill values as low as -5. Southwest wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around -5. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 25. Calm wind becoming west southwest 5 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 3. Calm wind.
Thursday
Mostly cloudy, with a high near 19. Calm wind becoming north around 5 mph.
Thursday Night
Mostly cloudy, with a low around 2. Light north wind.
Friday
Mostly sunny, with a high near 17. North wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around -3. Light north northwest wind.
Saturday
Mostly sunny, with a high near 20. Northwest wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 4. Light southwest wind.
Sunday
Partly sunny, with a high near 27. South southwest wind 3 to 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
11:01 am CST Jan 26, 2026
Forecast Valid:
11am CST Jan 26, 2026-6pm CST Feb 1, 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