Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

38°F

3°C

Humidity 46%
Wind Speed W 12 G 20 mph
Barometer 30.23 in (1024.4 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 21 Jan 11:56 pm CST
Extended Forecast for

9 Miles WSW Johnsonville IL

Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Click here for hazard details and duration
Winter Storm Watch
  • Overnight

    Overnight: Increasing clouds, with a low around 24. West northwest wind around 7 mph.

    Low: 24 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 38. West northwest wind 3 to 6 mph.

    High: 38 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12. Light and variable wind becoming north 8 to 13 mph after midnight. Winds could gust as high as 24 mph.

    Low: 12 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 16. Wind chill values as low as -2. North wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 16 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 5. North northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 5 °F

    Mostly Cloudy

  • Saturday

    Saturday: Snow showers, mainly after noon.  High near 15. Northeast wind 8 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%.

    High: 15 °F

    Chance Snow
    Showers then
    Snow Showers

  • Saturday Night

    Saturday Night: Snow showers.  Low around 10. North northeast wind 6 to 8 mph.  Chance of precipitation is 90%.

    Low: 10 °F

    Snow Showers

  • Sunday

    Sunday: A chance of snow showers, mainly before noon.  Mostly cloudy, with a high near 18. North northwest wind 7 to 10 mph.

    High: 18 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 2. Northwest wind around 6 mph.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Increasing clouds, with a low around 24. West northwest wind around 7 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 38. West northwest wind 3 to 6 mph.
Thursday Night
Partly cloudy, with a low around 12. Light and variable wind becoming north 8 to 13 mph after midnight. Winds could gust as high as 24 mph.
Friday
Partly sunny, with a high near 16. Wind chill values as low as -2. North wind 9 to 14 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 5. North northeast wind around 10 mph, with gusts as high as 20 mph.
Saturday
Snow showers, mainly after noon. High near 15. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday Night
Snow showers. Low around 10. North northeast wind 6 to 8 mph. Chance of precipitation is 90%.
Sunday
A chance of snow showers, mainly before noon. Mostly cloudy, with a high near 18. North northwest wind 7 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 2. Northwest wind around 6 mph.
Monday
Sunny, with a high near 18. West northwest wind around 7 mph becoming southwest in the afternoon.
Monday Night
Mostly clear, with a low around 6. Southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 30. Southwest wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 17. Light and variable wind becoming west southwest around 5 mph after midnight.
Wednesday
Partly sunny, with a high near 30. West wind 5 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WSW Johnsonville IL
 38.48°N 88.68°W
12:17 am CST Jan 22, 2026
12am CST Jan 22, 2026-6pm CST Jan 28, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database