Last Update: 1001 AM EDT Sat Jun 21 2025

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Marquette, MI Local Forecast Office

30NM SE Grand Portage MN

Marine Zone Forecast

Rest Of Today
South winds 10 to 20 knots veering west in the afternoon, then becoming southeast 5 to 15 knots late. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Tonight
East winds 5 to 15 knots increasing to 10 to 20 knots late. A chance of showers and thunderstorms. Waves subsiding to calm to 2 feet, then building to 2 to 4 feet.
Sunday
East winds 10 to 20 knots diminishing to 5 to 15 knots in the afternoon. A slight chance of showers and thunderstorms by mid afternoon. Waves subsiding to 1 to 3 feet.
Sunday Night
South winds 10 to 20 knots veering southwest after midnight. A chance of showers and thunderstorms. Waves subsiding to calm to 2 feet, then building to 2 to 4 feet.
Monday
West winds 15 to 25 knots. A chance of thunderstorms through early afternoon. A chance of showers. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.
Monday Night
West winds 10 to 20 knots becoming northwest 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
Tuesday
Northeast winds 5 to 15 knots veering east. Waves calm to 2 feet.
Wednesday
East winds 5 to 15 knots. A chance of showers. Waves calm to 2 feet.



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1001 AM EDT Sat Jun 21 2025
 
 

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