Last Update: 502 AM EDT Thu Sep 18 2025

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Marquette, MI Local Forecast Office

24NM W Ontonagon MI

Marine Zone Forecast

Early This Morning
Northeast wind 10 to 15 knots. Cloudy with a slight chance of showers. Waves 1 to 2 feet building to 2 to 3 feet.
Today
Northeast wind 10 to 20 knots. Mostly cloudy. A slight chance of showers through mid morning, then a slight chance of showers and thunderstorms by late morning. Waves building to 3 to 6 feet occasionally to 8 feet.
Tonight
East wind 10 to 20 knots. Cloudy with a slight chance of showers and thunderstorms. Waves subsiding to 2 to 3 feet.
Friday
East wind 10 to 20 knots. Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the morning, then a chance of showers in the afternoon. Waves building to 2 to 4 feet.
Friday Night
East wind 10 to 20 knots veering southeast 10 to 15 knots after midnight. Cloudy with a chance of showers and a slight chance of thunderstorms. Waves subsiding to 1 to 2 feet.



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502 AM EDT Thu Sep 18 2025
 
 

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