Last Update: 501 AM EDT Tue Aug 25 2026

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Marquette, MI Local Forecast Office

9NM SE Copper Harbor MI

Marine Zone Forecast

Early This Morning
Variable wind less than 10 knots. Partly cloudy. Waves calm to 1 foot.
Today
South wind less than 10 knots backing southeast 10 to 15 knots late. Partly cloudy. A chance of showers and a slight chance of thunderstorms late. Waves building to 1 to 2 feet.
Tonight
Southeast wind 10 to 15 knots veering southwest less than 10 knots late. Cloudy. A chance of thunderstorms in the evening. Showers likely through the night. A slight chance of thunderstorms after midnight. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet.
Wednesday
West wind 10 to 15 knots. Gusts up to 22 knots. Mostly cloudy with a slight chance of showers. Waves 1 to 2 feet.
Wednesday Night
Northwest wind 10 to 15 knots. Gusts up to 23 knots. Partly cloudy with a slight chance of showers. Waves building to 2 to 3 feet.



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501 AM EDT Tue Aug 25 2026
 
 

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