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

Scattered severe storms possible Saturday, very hot and humid late this weekend into early next week.

Scattered severe storms are possible Saturday morning across northern Michigan, followed by very hot and humid weather with heat index values potentially reaching 100 degrees or more. Read More >

Hazardous Weather Conditions

Current conditions at

Mackinac Island Airport (KMCD)

Lat: 45.87°NLon: 84.63°WElev: 738ft.

Fog/Mist

59°F

15°C

Humidity 94%
Wind Speed SE 9 mph
Barometer 29.84 in
Dewpoint 57°F (14°C)
Visibility 6.00 mi
Last update 21 Jun 4:55 am EDT
Extended Forecast for

Mackinac Island MI

  • Overnight

    Overnight: A 30 percent chance of showers. Mostly cloudy, with a low around 56. Southeast wind around 10 mph.

    Low: 56 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm. Patchy fog between 8am and 9am. High near 78. Southeast wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 78 °F

    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 66. Breezy, with a west wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms and
    Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 81. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68. Southwest wind 10 to 15 mph.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Sunny, with a high near 80. Breezy. Chance of precipitation is 40%.

    High: 80 °F

    Sunny then
    Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers. Mostly cloudy, with a low around 56. Southeast wind around 10 mph.
Saturday
Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm. Patchy fog between 8am and 9am. High near 78. Southeast wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
A slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 66. Breezy, with a west wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 81. Southwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 68. Southwest wind 10 to 15 mph.
Monday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Sunny, with a high near 80. Breezy. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Tuesday
Partly sunny, with a high near 73.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 55.
Wednesday
A chance of showers. Mostly cloudy, with a high near 68.
Wednesday Night
Showers likely. Cloudy, with a low around 56.
Thursday
Showers likely. Mostly cloudy, with a high near 68.
Thursday Night
Showers likely. Mostly cloudy, with a low around 57.
Friday
A chance of showers. Partly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mackinac Island MI
 45.86°N 84.62°W (Elev. 768 ft)
Last Update:
4:09 am EDT Jun 21, 2025
Forecast Valid:
5am EDT Jun 21, 2025-6pm EDT Jun 27, 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