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: 502 AM EDT Wed Jun 17 2026


Early This Morning: South wind less than 10 knots. Mostly cloudy. Waves calm to 1 foot.

Today: Southeast wind less than 10 knots backing east late. Partly cloudy through mid morning then becoming cloudy. A slight chance of showers by late morning. A chance of showers late. Waves calm to 1 foot.

Tonight: Northeast wind less than 10 knots backing northwest late. Cloudy. A chance of rain showers through midnight, then a slight chance of rain showers late. Waves calm to 1 foot.

Thursday: West wind 10 to 15 knots. Cloudy in the morning then becoming partly cloudy. A slight chance of rain showers. Waves building to 2 to 3 feet.

Thursday Night: West wind 10 to 15 knots. Partly cloudy. Waves subsiding to 1 to 2 feet.







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

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