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

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

83°F

28°C

Humidity 51%
Wind Speed W 8 mph
Barometer 30.01 in (1016.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 20 Jun 10:56 am CDT
Extended Forecast for

Opdyke IL

  • Today

    Today: Mostly sunny, with a high near 87. West wind 3 to 5 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Light and variable wind.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 5pm. Increasing clouds, with a high near 87. Light and variable wind becoming south southwest 13 to 18 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    High: 87 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before midnight, then showers likely and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 69. Southwest wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.

    Low: 69 °F

    Heavy Rain
    then Showers
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 80. West southwest wind 9 to 11 mph becoming north northwest in the afternoon. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. North wind 5 to 9 mph becoming calm in the evening.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Light northeast wind.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 87. West wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 65. Light and variable wind.
Sunday
Showers and thunderstorms likely, mainly before 5pm. Increasing clouds, with a high near 87. Light and variable wind becoming south southwest 13 to 18 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms, mainly before midnight, then showers likely and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 69. Southwest wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.
Monday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 80. West southwest wind 9 to 11 mph becoming north northwest in the afternoon. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 61. North wind 5 to 9 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 62. Calm wind.
Wednesday
Mostly sunny, with a high near 84. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 63. Light and variable wind.
Thursday
Mostly sunny, with a high near 83. Calm wind becoming west northwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 63. Light north wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Light and variable wind.
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ABOUT THIS FORECAST

 
Point Forecast:
Opdyke IL
 38.28°N 88.75°W
Last Update:
11:01 am CDT Jun 20, 2026
Forecast Valid:
11am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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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