Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
23°F
-5°C
| Humidity | 74% |
| Wind Speed | S 8 mph |
| Barometer | 30.16 in (1022.4 mb) |
| Dewpoint | 16°F (-9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 14°F (-10°C) |
| Last update | 24 Feb 6:56 am CST |
Extended Forecast for
9 Miles WSW Johnsonville IL
Today
High: 47 °F
Partly Sunny
then Mostly
Cloudy and
BreezyTonight
Low: 35 °F
Mostly Cloudy
Wednesday
High: 52 °F
Partly Sunny
Wednesday Night
Low: 35 °F
Slight Chance
Showers then
Showers
LikelyThursday
High: 50 °F
Chance
Showers then
Mostly SunnyThursday Night
Low: 30 °F
Mostly Clear
Friday
High: 60 °F
Sunny
Friday Night
Low: 39 °F
Mostly Clear
Saturday
High: 64 °F
Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 47. Breezy, with a south wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Tonight
Mostly cloudy, with a low around 35. South southwest wind 11 to 16 mph becoming light west after midnight. Winds could gust as high as 28 mph.
Wednesday
Partly sunny, with a high near 52. Northwest wind around 5 mph becoming calm in the afternoon.
Wednesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 35. Calm wind becoming east northeast 5 to 7 mph in the evening. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers before noon. Partly sunny, with a high near 50. East northeast wind 5 to 8 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 30. Light and variable wind.
Friday
Sunny, with a high near 60. Calm wind becoming south southwest 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 39. Southwest wind around 6 mph.
Saturday
Sunny, with a high near 64. South southwest wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 32. South southwest wind 7 to 10 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.
Sunday
A slight chance of rain and snow showers. Partly sunny, with a high near 45. Northeast wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 32. East northeast wind around 9 mph.
Monday
A chance of showers. Partly sunny, with a high near 49. East wind 8 to 10 mph, with gusts as high as 18 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
9 Miles WSW Johnsonville IL
38.48°N 88.68°W
38.48°N 88.68°W
5:26 am CST Feb 24, 2026
7am CST Feb 24, 2026-6pm CST Mar 2, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
