Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Overcast
N/A
| Humidity | NA |
| Wind Speed | S 9 mph |
| Barometer | 30.14 in |
| Dewpoint | N/A |
| Visibility | 10.00 mi |
| Last update | 3 Dec 11:56 am CST |
Extended Forecast for
Nason IL
This Afternoon

High: 36 °F
Cloudy
Tonight
Low: 21 °F
Slight Chance
Wintry Mix
then Slight
Chance Snow
ShowersThursday

High: 29 °F
Gradual
ClearingThursday Night

Low: 18 °F
Mostly Cloudy
Friday

High: 40 °F
Mostly Sunny
Friday Night

Low: 26 °F
Partly Cloudy
Saturday

High: 44 °F
Partly Sunny
Saturday Night
Low: 28 °F
Mostly Cloudy
then Slight
Chance
Freezing RainSunday
High: 39 °F
Slight Chance
Showers then
Partly Sunny
Detailed Forecast
This Afternoon
Cloudy, with a high near 36. West wind 5 to 8 mph becoming south southwest.
Tonight
A slight chance of snow showers and freezing rain before 11pm, then a slight chance of snow showers between 11pm and 5am. Cloudy, with a low around 21. Calm wind becoming north 5 to 9 mph after midnight. Chance of precipitation is 20%.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 29. North northeast wind 6 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 18. Calm wind.
Friday
Mostly sunny, with a high near 40. Calm wind becoming south southwest around 6 mph.
Friday Night
Partly cloudy, with a low around 26. Light south southwest wind.
Saturday
Partly sunny, with a high near 44. Calm wind becoming west southwest around 5 mph.
Saturday Night
A slight chance of freezing rain after midnight. Mostly cloudy, with a low around 28. Calm wind becoming north northeast around 6 mph after midnight.
Sunday
A slight chance of showers before noon. Partly sunny, with a high near 39. North northeast wind 6 to 9 mph.
Sunday Night
Mostly cloudy, with a low around 19. North wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 35. Light and variable wind becoming north around 6 mph in the morning.
Monday Night
Partly cloudy, with a low around 23. South southwest wind 3 to 8 mph.
Tuesday
Mostly sunny, with a high near 45. Southwest wind 8 to 11 mph.
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ABOUT THIS FORECAST
Point Forecast:
Nason IL
38.18°N 88.98°W
38.18°N 88.98°W
12:36 pm CST Dec 3, 2025
12pm CST Dec 3, 2025-6pm CST Dec 9, 2025


