Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
24°F
-4°C
| Humidity | 57% |
| Wind Speed | SE 7 mph |
| Barometer | 29.91 in (1014.0 mb) |
| Dewpoint | 11°F (-12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 16°F (-9°C) |
| Last update | 15 Jan 7:56 pm CST |
Extended Forecast for
9 Miles WSW Johnsonville IL
Tonight
Low: 25 °F⇑
Chance Snow
ShowersFriday
High: 43 °F
Mostly Cloudy
then Chance
ShowersFriday Night
Low: 23 °F
Mostly Cloudy
then Slight
Chance Snow
ShowersSaturday
High: 28 °F
Partly Sunny
Saturday Night
Low: 12 °F
Mostly Clear
Sunday
High: 27 °F
Mostly Sunny
Sunday Night
Low: 14 °F
Partly Cloudy
M.L.King Day
High: 21 °F
Sunny
Monday Night
Low: 8 °F
Mostly Clear
Detailed Forecast
Tonight
A 40 percent chance of snow showers, mainly before 2am. Mostly cloudy, with a temperature rising to around 31 by 4am. South wind 5 to 10 mph, with gusts as high as 22 mph.
Friday
A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 43. West wind 7 to 11 mph, with gusts as high as 21 mph.
Friday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 23. West wind 6 to 9 mph.
Saturday
Partly sunny, with a high near 28. West wind 8 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 12. West northwest wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 27. Southwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 14. South southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 22 mph.
M.L.King Day
Sunny, with a high near 21. West northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 8. West northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 31. Calm wind becoming southwest 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 21. South southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 43. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
A slight chance of rain or freezing rain. Partly cloudy, with a low around 22. West northwest wind around 6 mph becoming north northeast after midnight.
Thursday
Mostly sunny, with a high near 39. Northeast wind around 7 mph becoming south southeast in the afternoon.
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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
7:46 pm CST Jan 15, 2026
8pm CST Jan 15, 2026-6pm CST Jan 22, 2026
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