Coastal Waters Forecast for Ontonagon to Upper Entrance of Portage Canal MI (LSZ242) (Text-Only)
NWS Forecast for: Ontonagon to Upper Entrance of Portage Canal MI (LSZ242)
Issued by: National Weather Service Marquette, MI
Last Update: 1100 PM EDT Tue Jun 30 2026
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Rest Of Tonight: Southwest wind 10 to 15 knots. Mostly clear. Waves calm to 1 foot building to 1 to 2 feet.

Wednesday: Southwest wind less than 10 knots. Partly cloudy. A slight chance of showers and thunderstorms late. Waves 1 to 2 feet.

Wednesday Night: Southwest wind 5 to 15 knots. Mostly cloudy in the evening then becoming partly cloudy. A slight chance of showers and thunderstorms. Waves building to 1 to 2 feet.

Thursday: Southwest wind 10 to 15 knots. Mostly sunny. Waves building to 2 to 3 feet.







Zone Forecast: Ontonagon to Upper Entrance of Portage Canal MI (LSZ242)

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