Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
17°F
-8°C
| Humidity | 88% |
| Wind Speed | Calm |
| Barometer | 30.36 in (1029.3 mb) |
| Dewpoint | 14°F (-10°C) |
| Visibility | 10.00 mi |
| Last update | 23 Feb 11:56 pm CST |
Extended Forecast for
9 Miles WSW Johnsonville IL
Overnight
Low: 20 °F
Partly Cloudy
Tuesday
High: 47 °F
Partly Sunny
then Mostly
Cloudy and
BreezyTuesday Night
Low: 35 °F
Mostly Cloudy
Wednesday
High: 53 °F
Mostly Sunny
Wednesday Night
Low: 36 °F
Slight Chance
Showers then
Chance
ShowersThursday
High: 48 °F
Chance
Showers then
Partly SunnyThursday Night
Low: 31 °F
Partly Cloudy
Friday
High: 59 °F
Sunny
Friday Night
Low: 38 °F
Mostly Clear
Detailed Forecast
Overnight
Partly cloudy, with a low around 20. Calm wind becoming south around 5 mph.
Tuesday
Mostly cloudy, with a high near 47. Breezy, with a south wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
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
Mostly sunny, with a high near 53. Light and variable wind becoming west northwest around 6 mph.
Wednesday Night
A 50 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 36. Calm wind becoming east northeast 5 to 7 mph in the evening.
Thursday
A 40 percent chance of showers before noon. Partly sunny, with a high near 48. Northeast wind 6 to 9 mph becoming north northwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 31. North northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 59. Calm wind becoming south southwest 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 38. South southwest wind around 7 mph.
Saturday
Sunny, with a high near 64. South southwest wind 6 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 34. South wind 7 to 9 mph becoming north after midnight.
Sunday
A chance of showers. Mostly cloudy, with a high near 48. East northeast wind 7 to 10 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 33. East wind 7 to 9 mph.
Monday
A chance of showers. Mostly cloudy, with a high near 49. North 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
9:42 pm CST Feb 23, 2026
12am CST Feb 24, 2026-6pm CST Mar 2, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
