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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 30.03 in (1016.6 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 18 Aug 1:56 am CDT
Extended Forecast for

5 Miles W Opdyke IL

Heat Advisory August 18, 02:19am until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 02:19am until August 19, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Overnight

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 96. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 96 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Light north wind increasing to 5 to 9 mph in the morning.

    High: 90 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66. North northeast wind 5 to 8 mph.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 88. North northeast wind 6 to 9 mph.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 74. Calm wind.
Monday
Sunny, with a high near 95. Light and variable wind becoming southeast around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 96. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Light north wind increasing to 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 66. North northeast wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 88. North northeast wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 66. North northeast wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 65. Light north wind.
Saturday
Sunny, with a high near 89. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 62. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 84. North northwest wind 3 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Opdyke IL
 38.29°N 88.83°W
Last Update:
1:45 am CDT Aug 18, 2025
Forecast Valid:
2am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation