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

N/A

Humidity NA
Wind Speed Calm
Barometer 29.73 in
Dewpoint N/A
Visibility 10.00 mi
Last update 15 Nov 7:56 pm CST
Extended Forecast for

Bonnie IL

  • Tonight

    Tonight: Mostly clear, with a low around 44. West southwest wind 7 to 9 mph becoming north after midnight.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60. North wind 5 to 9 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear

  • Monday

    Monday: A 20 percent chance of showers after noon. Increasing clouds, with a high near 60. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 60 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, then showers and possibly a thunderstorm after midnight. Low around 46. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.

    Low: 46 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 71. South southeast wind 9 to 11 mph. Chance of precipitation is 50%.

    High: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 49. Southeast wind 6 to 8 mph becoming north after midnight.

    Low: 49 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 66. East northeast wind 5 to 7 mph becoming south southwest in the morning.

    High: 66 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 52. East southeast wind 3 to 6 mph.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 44. West southwest wind 7 to 9 mph becoming north after midnight.
Sunday
Sunny, with a high near 60. North wind 5 to 9 mph.
Sunday Night
Clear, with a low around 34. Calm wind.
Monday
A 20 percent chance of showers after noon. Increasing clouds, with a high near 60. Calm wind becoming southeast 5 to 8 mph in the morning.
Monday Night
Showers likely, then showers and possibly a thunderstorm after midnight. Low around 46. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 71. South southeast wind 9 to 11 mph. Chance of precipitation is 50%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 49. Southeast wind 6 to 8 mph becoming north after midnight.
Wednesday
A chance of showers. Mostly cloudy, with a high near 66. East northeast wind 5 to 7 mph becoming south southwest in the morning.
Wednesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 52. East southeast wind 3 to 6 mph.
Thursday
Showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 68. South southeast wind 6 to 11 mph.
Thursday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 55. South southeast wind 9 to 11 mph.
Friday
Showers likely. Partly sunny, with a high near 66. Southwest wind 11 to 15 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 44. West wind 7 to 11 mph.
Saturday
A slight chance of showers. Partly sunny, with a high near 57. West northwest wind 6 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bonnie IL
 38.2°N 88.92°W
Last Update:
8:02 pm CST Nov 15, 2025
Forecast Valid:
8pm CST Nov 15, 2025-6pm CST Nov 22, 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