Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
81°F
27°C
| Humidity | 77% |
| Wind Speed | W 5 mph |
| Barometer | 30.06 in (1017.8 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 16 Aug 7:56 am CDT |
Extended Forecast for
4 Miles N Bonnie IL
Extreme Heat Warning August 16, 09:41am until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Today
High: 96 °F
Mostly Cloudy
then Slight
Chance
T-stormsTonight
Low: 72 °F
Chance
T-stormsMonday
High: 88 °F
Decreasing
CloudsMonday Night
Low: 65 °F
Partly Cloudy
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 70 °F
Mostly Clear
then Slight
Chance
T-stormsWednesday
High: 91 °F
Chance
ShowersWednesday Night
Low: 67 °F
Chance
T-storms
Detailed Forecast
Today
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 96. Heat index values as high as 109. West wind 3 to 8 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 72. Light and variable wind.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 88. North northwest wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 65. Light north wind.
Tuesday
Sunny, with a high near 90. Calm wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 70. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 91. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. North northeast wind around 6 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84. Calm wind becoming northeast 5 to 7 mph in the morning.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers. Mostly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 63. Calm wind.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming north northwest around 6 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles N Bonnie IL
38.27°N 88.89°W
38.27°N 88.89°W
9:16 am CDT Aug 16, 2026
9am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
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