Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Overcast
48°F
9°C
| Humidity | 54% |
| Wind Speed | Calm |
| Barometer | 29.82 in (1010.3 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Last update | 25 Feb 5:56 pm CST |
Extended Forecast for
9 Miles WSW Johnsonville IL
Tonight
Low: 34 °F
Chance
ShowersThursday
High: 53 °F
Mostly Sunny
Thursday Night
Low: 35 °F
Mostly Clear
Friday
High: 64 °F
Sunny
Friday Night
Low: 40 °F
Mostly Clear
Saturday
High: 61 °F
Mostly Sunny
Saturday Night
Low: 31 °F
Partly Cloudy
Sunday
High: 45 °F
Mostly Cloudy
then Chance
Rain/SnowSunday Night
Low: 30 °F
Rain/Snow
Likely
Detailed Forecast
Tonight
A 40 percent chance of showers, mainly between 10pm and 5am. Mostly cloudy, with a low around 34. Calm wind becoming northeast around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 53. East northeast wind around 6 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 35. Light and variable wind.
Friday
Sunny, with a high near 64. Light south southwest wind becoming southwest 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 40. South southwest wind 5 to 7 mph becoming north northwest after midnight.
Saturday
Mostly sunny, with a high near 61. North wind 5 to 8 mph becoming south in the afternoon.
Saturday Night
Partly cloudy, with a low around 31. North northeast wind 7 to 10 mph, with gusts as high as 21 mph.
Sunday
A chance of rain and snow showers after noon. Cloudy, with a high near 45. East northeast wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Rain and snow showers likely. Cloudy, with a low around 30. Northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Monday
A chance of rain and snow showers before noon, then a slight chance of rain showers. Cloudy, with a high near 40. East northeast wind 7 to 10 mph, with gusts as high as 20 mph.
Monday Night
A chance of showers. Cloudy, with a low around 30. East northeast wind around 6 mph.
Tuesday
A chance of showers. Cloudy, with a high near 46. East northeast wind 5 to 7 mph becoming west in the afternoon.
Tuesday Night
A chance of showers. Cloudy, with a low around 34. Light and variable wind becoming north around 6 mph in the evening.
Wednesday
A chance of showers. Cloudy, with a high near 53. East wind 5 to 7 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
9 Miles WSW Johnsonville IL
38.48°N 88.68°W
38.48°N 88.68°W
2:36 pm CST Feb 25, 2026
6pm CST Feb 25, 2026-6pm CST Mar 4, 2026
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