Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

82°F

28°C

Humidity 77%
Wind Speed Calm
Barometer 30.03 in (1016.8 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 18 Aug 9:56 pm CDT
Extended Forecast for

2 Miles SW Opdyke IL

Heat Advisory August 18, 10:31pm until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 10:31pm until August 19, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Tonight

    Low: 75 °F

    Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Sunny, with a high near 96. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon.

    High: 96 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 88. Calm wind becoming north northeast 5 to 9 mph in the morning.

    High: 88 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. North northeast wind 5 to 7 mph.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 87. North northeast wind 6 to 9 mph.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. North northeast wind around 6 mph becoming calm  in the evening.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Calm wind becoming north around 5 mph in the afternoon.

    High: 90 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 75. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny, with a high near 96. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming north northeast 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 67. North northeast wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 87. North northeast wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 67. North northeast wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 66. Calm wind.
Saturday
Sunny, with a high near 89. 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 83. Light north wind becoming north northwest 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 58. 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 7 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Opdyke IL
 38.26°N 88.78°W
8:15 pm CDT Aug 18, 2025
10pm CDT Aug 18, 2025-6pm CDT Aug 25, 2025
 
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Additional Resources

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