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
9 Miles WSW Johnsonville IL
Cold Weather Advisory January 25, 12:49pm until January 26, 12:00am
Extreme Cold Warning January 26, 12:00am until January 27, 10:00am
Winter Storm Warning January 25, 12:49pm until January 25, 06:00pm
NOW: Multiple hazards in effect

Click HERE for Details
This Afternoon

High: 14 °F
Heavy Snow
Tonight

Low: -5 °F
Gradual
ClearingMonday

High: 11 °F
Sunny
Monday Night

Low: -1 °F
Mostly Clear
Tuesday

High: 27 °F
Mostly Sunny
Tuesday Night

Low: -3 °F
Partly Cloudy
Wednesday

High: 20 °F
Partly Sunny
Wednesday Night

Low: -2 °F
Partly Cloudy
Detailed Forecast
This Afternoon
Snow likely, mainly before 3pm. The snow could be heavy at times. Cloudy, with a high near 14. Wind chill values as low as -2. North northwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 3 to 7 inches possible.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around -5. Wind chill values as low as -18. Northwest wind 9 to 13 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 11. Wind chill values as low as -20. Northwest wind 5 to 9 mph becoming west southwest in the afternoon.
Monday Night
Mostly clear, with a low around -1. Wind chill values as low as -11. Light southwest wind becoming south southwest 5 to 10 mph in the evening. Winds could gust as high as 21 mph.
Tuesday
Mostly sunny, with a high near 27. Southwest wind 6 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around -3. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 20. Calm wind becoming west 5 to 7 mph in the morning.
Wednesday Night
Partly cloudy, with a low around -2. Light north northwest wind.
Thursday
Partly sunny, with a high near 18. Northwest wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 3. Light north northeast wind.
Friday
Partly sunny, with a high near 20. North wind 3 to 6 mph.
Friday Night
Partly cloudy, with a low around 2. Light north northwest wind.
Saturday
Mostly sunny, with a high near 19. Northwest wind 3 to 6 mph.
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ABOUT THIS FORECAST
Point Forecast:
9 Miles WSW Johnsonville IL
38.48°N 88.68°W
38.48°N 88.68°W
10:51 am CST Jan 25, 2026
12pm CST Jan 25, 2026-6pm CST Jan 31, 2026



