Last Update: 501 PM EDT Sun Jul 12 2026

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Marquette, MI Local Forecast Office

3NM WNW Copper Harbor MI

Marine Zone Forecast

Late This Afternoon
Southwest wind 10 to 15 knots with gusts up to 23 knots. Mostly sunny. Waves 2 to 3 feet.
Tonight
Southwest wind 10 to 20 knots veering west 15 to 20 knots late. Gusts up to 30 knots. Mostly clear. A slight chance of showers by midnight. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 3 to 5 feet occasionally to 7 feet.
Monday
West wind 15 to 20 knots with gusts up to 29 knots. Mostly sunny. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.
Monday Night
West wind 20 to 25 knots with gusts up to 33 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.
Tuesday
West wind 10 to 20 knots with gusts up to 30 knots. Sunny. Waves subsiding to 2 to 3 feet.



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501 PM EDT Sun Jul 12 2026
 
 

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