Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
58°F
14°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 29.99 in (1015.7 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 11 Oct 5:56 am CDT |
Extended Forecast for
Nason IL
Today
High: 86 °F
Sunny
Tonight
Low: 60 °F
Mostly Clear
Columbus Day
High: 92 °F
Sunny
Monday Night
Low: 67 °F
Clear
Tuesday
High: 94 °F
Sunny
Tuesday Night
Low: 69 °F
Mostly Clear
then Chance
T-stormsWednesday
High: 86 °F
Showers
LikelyWednesday Night
Low: 63 °F
Chance
ShowersThursday
High: 82 °F
Showers
Likely
Detailed Forecast
Today
Sunny, with a high near 86. Calm wind becoming northwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 60. Light and variable wind.
Columbus Day
Sunny, with a high near 92. Light southwest wind increasing to 9 to 14 mph in the morning.
Monday Night
Clear, with a low around 67. Southwest wind around 9 mph.
Tuesday
Sunny, with a high near 94. Southwest wind 7 to 13 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. South southwest wind 3 to 7 mph.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. Light and variable wind becoming west northwest 5 to 8 mph in the morning. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northeast wind 6 to 8 mph.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. East wind 9 to 13 mph becoming south southwest in the afternoon.
Thursday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 55. South wind 9 to 13 mph becoming west northwest after midnight.
Friday
A slight chance of showers. Partly sunny, with a high near 71. Breezy, with a northwest wind 17 to 23 mph.
Friday Night
Partly cloudy, with a low around 42. Breezy, with a north northwest wind 13 to 21 mph.
Saturday
Mostly sunny, with a high near 62. North wind 14 to 17 mph, with gusts as high as 20 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Nason IL
38.18°N 88.98°W
38.18°N 88.98°W
4:56 am CDT Oct 11, 2026
6am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
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