Last Update: 501 PM EDT Sun Jul 19 2026

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Marquette, MI Local Forecast Office

24NM W Ontonagon MI

Marine Zone Forecast

Late This Afternoon
Variable wind less than 10 knots. Partly cloudy. Patchy smoke. Waves calm to 1 foot.
Tonight
South wind 5 to 15 knots veering southwest 15 to 20 knots late. Partly cloudy with a slight chance of showers and thunderstorms through midnight, then mostly cloudy with showers likely and a slight chance of thunderstorms late. Patchy smoke through the night. Waves building to 2 to 3 feet.
Monday
Southwest wind 15 to 20 knots. Gusts up to 31 knots. Mostly cloudy through mid morning then becoming mostly sunny. Showers likely and a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Some thunderstorms may be severe by late morning. Some thunderstorms may be severe late. Waves 2 to 3 feet.
Monday Night
West wind 10 to 20 knots with gusts up to 28 knots. Partly cloudy. Patchy smoke in the evening. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Some thunderstorms may be severe in the evening. Waves building to 2 to 4 feet.
Tuesday
Northwest wind 15 to 20 knots veering north 10 to 20 knots in the afternoon. Gusts up to 31 knots. Partly cloudy. A slight chance of showers in the morning. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.



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501 PM EDT Sun Jul 19 2026
 
 

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