Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
76°F
24°C
| Humidity | 88% |
| Wind Speed | Calm |
| Barometer | 30.03 in (1016.6 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 76°F (24°C) |
| Last update | 16 Aug 4:56 am CDT |
Extended Forecast for
5 Miles NW McLeansboro IL
Extreme Heat Warning August 16, 05:21am until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Today
High: 96 °F
Mostly Sunny
Tonight
Low: 73 °F
Chance
T-storms then
Chance
ShowersMonday
High: 88 °F
Slight Chance
Showers then
Mostly SunnyMonday Night
Low: 64 °F
Partly Cloudy
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 69 °F
Mostly Clear
then Slight
Chance
T-stormsWednesday
High: 91 °F
Chance
ShowersWednesday Night
Low: 68 °F
Showers
Likely
Detailed Forecast
Today
Mostly sunny, with a high near 96. Heat index values as high as 106. West southwest wind 5 to 8 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. Light northwest wind.
Monday
A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 88. North northwest wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 64. 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 69. 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 southwest 5 to 7 mph in the afternoon.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Northeast wind 3 to 7 mph.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84. Northeast wind 3 to 7 mph.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 63. 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 6 mph in the afternoon.
Friday Night
A slight chance of showers. Mostly clear, with a low around 62. Calm wind.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming north around 6 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles NW McLeansboro IL
38.15°N 88.61°W
38.15°N 88.61°W
4:16 am CDT Aug 16, 2026
5am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
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