Last Update: 401 PM EDT Wed Jun 18 2025

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Marquette, MI Local Forecast Office

24NM NNW Copper Harbor MI

Marine Zone Forecast

Late This Afternoon
Southeast winds less than 10 knots. Waves calm to 2 feet.
Tonight
Southeast winds less than 10 knots backing north after midnight, then increasing to 5 to 15 knots late. Areas of fog. Waves calm to 2 feet.
Thursday
Northeast winds 5 to 15 knots. Patchy fog through early afternoon. A slight chance of showers. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet.
Thursday Night
West winds less than 10 knots backing east late. A chance of showers. Waves calm to 2 feet.
Friday
East winds 5 to 15 knots. A chance of showers. A slight chance of thunderstorms by mid afternoon. Waves calm to 2 feet.
Friday Night
Southeast winds 5 to 15 knots. A chance of showers through midnight. A chance of thunderstorms. Showers after midnight. Waves calm to 2 feet.
Saturday
East winds 5 to 15 knots. Showers likely through early afternoon. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet.
Saturday Night
East winds 5 to 15 knots veering southeast after midnight. A chance of showers. Waves calm to 2 feet.
Sunday
Southeast winds 5 to 15 knots becoming southwest 10 to 20 knots. A chance of showers. Waves building to 1 to 3 feet.
Monday
West winds 10 to 20 knots diminishing to 5 to 15 knots. A chance of showers. Waves subsiding to calm to 2 feet.



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401 PM EDT Wed Jun 18 2025
 
 

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