Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
43°F
6°C
| Humidity | 60% |
| Wind Speed | NE 16 G 24 mph |
| Barometer | 30.28 in (1026.1 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 35°F (2°C) |
| Last update | 1 Mar 4:56 pm CST |
Extended Forecast for
9 Miles WSW Johnsonville IL
Tonight
Low: 34 °F
Rain Likely
then Wintry
MixMonday
High: 43 °F
Rain Likely
then Slight
Chance RainMonday Night
Low: 42 °F
Cloudy then
Chance
ShowersTuesday

High: 67 °F
Showers
LikelyTuesday Night

Low: 55 °F
Chance
ShowersWednesday

High: 71 °F
Showers
LikelyWednesday Night

Low: 56 °F
Showers
LikelyThursday

High: 70 °F
Showers
Thursday Night
Low: 58 °F
Chance
Showers then
Chance
T-storms
Detailed Forecast
Tonight
Rain, possibly mixed with snow before 3am, then rain, possibly mixed with snow and sleet between 3am and 4am, then rain after 4am. Low around 34. Northeast wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow and sleet accumulation expected.
Monday
Rain likely, mainly before 11am, then a slight chance of drizzle after 4pm. Cloudy, with a high near 43. East wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers after midnight. Cloudy, with a steady temperature around 42. Calm wind becoming east southeast around 5 mph after midnight.
Tuesday
Showers likely, mainly before noon. Cloudy, with a high near 67. East southeast wind 6 to 11 mph becoming south southwest in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 70%.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 55. South wind around 6 mph.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. South southwest wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. South southwest wind around 8 mph. Chance of precipitation is 70%.
Thursday
Showers. Mostly cloudy, with a high near 70. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. South wind 7 to 9 mph, with gusts as high as 18 mph.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 52. South southwest wind around 9 mph, with gusts as high as 18 mph.
Saturday
Showers and thunderstorms likely. Cloudy, with a high near 64. Southwest wind 6 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
A chance of showers. Partly cloudy, with a low around 43. Northwest wind around 5 mph becoming south after midnight.
Sunday
A chance of showers. Mostly sunny, with a high near 66. South southwest wind 5 to 8 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
4:16 pm CST Mar 1, 2026
5pm CST Mar 1, 2026-6pm CDT Mar 8, 2026



