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

Mackinac Island Airport (KMCD)

Lat: 45.87°NLon: 84.63°WElev: 738ft.

Fair

66°F

19°C

Humidity 100%
Wind Speed S 8 mph
Barometer 29.88 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 1 Sep 11:15 pm EDT
Extended Forecast for

3 Miles NNE Bois Blanc Island MI

  • Tonight

    Tonight: A 20 percent chance of showers. Patchy dense fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 64. Southeast wind around 5 mph becoming southwest after midnight.

    Low: 64 °F

    Slight Chance
    Showers and
    Patchy Dense
    Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers. Areas of dense fog between 8am and 11am. Otherwise, mostly cloudy, with a high near 69. West wind 5 to 10 mph.

    High: 69 °F

    Slight Chance
    Showers and
    Areas Dense
    Fog

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58. Northwest wind around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. Northwest wind around 5 mph.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. North wind around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers. Patchy dense fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 64. Southeast wind around 5 mph becoming southwest after midnight.
Wednesday
A 20 percent chance of showers. Areas of dense fog between 8am and 11am. Otherwise, mostly cloudy, with a high near 69. West wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 58. Northwest wind around 5 mph.
Thursday
Mostly sunny, with a high near 74. Northwest wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 58. North wind around 5 mph.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
A chance of showers. Partly cloudy, with a low around 58.
Labor Day
A chance of showers. Partly sunny, with a high near 70.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Bois Blanc Island MI
 45.8°N 84.41°W (Elev. 577 ft)
Last Update:
11:11 pm EDT Sep 1, 2026
Forecast Valid:
11pm EDT Sep 1, 2026-6pm EDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation