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

64°F

18°C

Humidity 84%
Wind Speed Calm
Barometer 30.09 in (1019.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 4 Oct 7:56 pm CDT
Extended Forecast for

Opdyke IL

  • Tonight

    Tonight: Clear, with a low around 55. Southeast wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. Light south southeast wind becoming south 6 to 11 mph in the morning.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. South southeast wind 3 to 6 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 84. South southeast wind 3 to 8 mph. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am, then showers likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 65. South southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 65 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. Calm wind becoming north northwest 5 to 9 mph in the morning. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 55. North northeast wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 74. Northeast wind 8 to 11 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. East northeast wind 5 to 7 mph.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 55. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 86. Light south southeast wind becoming south 6 to 11 mph in the morning.
Sunday Night
Mostly clear, with a low around 62. South southeast wind 3 to 6 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 84. South southeast wind 3 to 8 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms before 1am, then showers likely between 1am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 65. South southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. Calm wind becoming north northwest 5 to 9 mph in the morning. Chance of precipitation is 70%.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 55. North northeast wind 6 to 8 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 74. Northeast wind 8 to 11 mph.
Wednesday Night
Mostly clear, with a low around 49. East northeast wind 5 to 7 mph.
Thursday
Sunny, with a high near 75. East wind around 7 mph.
Thursday Night
Mostly clear, with a low around 51. Light east wind.
Friday
Sunny, with a high near 78. Calm wind becoming south southwest 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 54. South wind around 5 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 75. North wind 5 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Opdyke IL
 38.28°N 88.75°W
Last Update:
6:01 pm CDT Oct 4, 2025
Forecast Valid:
8pm CDT Oct 4, 2025-6pm CDT Oct 11, 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