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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: 1101 AM EDT Wed Sep 9 2026		Print



Rest Of Today: West wind up to 30 knots with gale force gusts up to 44 knots. Mostly sunny. Waves 7 to 10 feet occasionally to 13 feet building to 8 to 11 feet occasionally to 14 feet, then subsiding to 7 to 10 feet occasionally to 13 feet.

Tonight: Northwest wind 15 to 25 knots with gale force gusts up to 37 knots diminishing to 10 to 15 knots with gusts up to 25 knots late. Clear. Waves subsiding to 2 to 3 feet.

Thursday: Northwest wind 10 to 15 knots backing southwest less than 10 knots in the afternoon. Sunny. Waves subsiding to 1 to 2 feet.

Thursday Night: South wind 5 to 15 knots with gusts up to 24 knots. Clear. Waves calm to 1 foot.






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

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