National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Thunderstorm in Vicinity Light Rain

88°F

31°C

Humidity 66%
Wind Speed Calm
Barometer 29.94 in (1013.7 mb)
Dewpoint 75°F (24°C)
Visibility 9.00 mi
Heat Index98°F (37°C)
Last update 19 Aug 5:56 pm CDT
Extended Forecast for

8 Miles NNW Keenes IL

Heat Advisory August 19, 06:51pm until August 19, 07:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory August 19, 06:51pm until August 19, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Tonight

    Low: 70 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 86. North northeast wind 6 to 10 mph.

    High: 86 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. North northeast wind 5 to 8 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 83. North northeast wind 5 to 9 mph.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. North northeast wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 87. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 70. North northwest wind around 6 mph becoming calm.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 86. North northeast wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 65. North northeast wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 83. North northeast wind 5 to 9 mph.
Thursday Night
Mostly clear, with a low around 64. North northeast wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 86. Calm wind becoming north northeast 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.
Saturday Night
Mostly clear, with a low around 60. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 82. Light north northwest wind becoming northwest 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 55. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 78. Calm wind becoming northwest 5 to 7 mph in the morning.
Monday Night
Mostly clear, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming north northwest around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNW Keenes IL
 38.44°N 88.68°W
Last Update:
6:01 pm CDT Aug 19, 2025
Forecast Valid:
6pm CDT Aug 19, 2025-6pm CDT Aug 26, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation