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Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
75°F
24°C
| Humidity | 96% |
| Wind Speed | Calm |
| Barometer | 30.01 in (1016.2 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Last update | 19 Aug 3:56 am CDT |
Extended Forecast for
2 Miles NNW Nason IL
Heat Advisory August 19, 04:45am until August 19, 07:00pm
NOW until 7:00pm Tue
Heat Advisory
Today
High: 97 °F
Sunny then
Slight Chance
T-stormsTonight
Low: 71 °F
Chance
T-stormsWednesday
High: 88 °F
Mostly Sunny
Wednesday Night
Low: 66 °F
Partly Cloudy
Thursday
High: 88 °F
Mostly Sunny
Thursday Night
Low: 65 °F
Mostly Clear
Friday
High: 90 °F
Sunny
Friday Night
Low: 65 °F
Mostly Clear
Detailed Forecast
Today
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Heat index values as high as 105. Calm wind becoming west 5 to 7 mph in the morning.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 71. North northeast wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 88. North wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 66. North northeast wind 5 to 9 mph.
Thursday
Mostly sunny, with a high near 88. North northeast wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 65. North northeast wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. Calm wind becoming north northeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 65. North northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 90. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 62. North northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 85. Light north northwest wind increasing to 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 57. North northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 80. Calm wind becoming north northwest 5 to 8 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles NNW Nason IL
38.2°N 88.98°W
38.2°N 88.98°W
4:30 am CDT Aug 19, 2025
4am CDT Aug 19, 2025-6pm CDT Aug 25, 2025
Additional Resources
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