Last Update: 502 PM EDT Tue May 19 2026

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Marquette, MI Local Forecast Office

24NM W Ontonagon MI

Marine Zone Forecast

Late This Afternoon
West wind 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet.
Tonight
West wind 10 to 15 knots veering northwest 5 to 15 knots by midnight. Gusts up to 22 knots. Mostly cloudy through late evening then becoming mostly clear. Waves subsiding to 1 to 2 feet.
Wednesday
Northwest wind less than 10 knots through early afternoon becoming variable. Mostly sunny. Waves 1 to 2 feet.
Wednesday Night
Southeast wind less than 10 knots veering south after midnight. Mostly clear. Waves calm to 1 foot.
Thursday
Southeast wind less than 10 knots backing northeast in the afternoon. Sunny. Waves calm to 1 foot.



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502 PM EDT Tue May 19 2026
 
 

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