Last Update: 1101 AM EDT Thu May 21 2026

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Marquette, MI Local Forecast Office

3NM WNW Copper Harbor MI

Marine Zone Forecast

Rest Of Today
Southeast wind 5 to 15 knots. Sunny. Waves calm to 1 foot building to 1 to 2 feet.
Tonight
Southeast wind 10 to 15 knots becoming 5 to 15 knots by midnight. Clear. Waves 1 to 2 feet.
Friday
East wind 10 to 20 knots. Partly cloudy. Waves building to 2 to 4 feet.
Friday Night
Southeast wind 15 to 20 knots. Partly cloudy in the evening then becoming cloudy. Waves building to 3 to 5 feet occasionally to 7 feet.



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1101 AM EDT Thu May 21 2026
 
 

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