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: 501 AM EDT Wed Aug 26 2026
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Early This Morning: Southwest wind 10 to 15 knots with gusts up to 24 knots. Cloudy with a chance of showers. Waves 1 to 2 feet building to 2 to 3 feet.

Today: West wind 10 to 20 knots with gusts up to 28 knots. Mostly cloudy with a chance of showers. Waves building to 2 to 4 feet, then subsiding to 2 to 3 feet.

Tonight: West wind 10 to 15 knots veering north late. Gusts up to 23 knots. Partly cloudy. A chance of showers through late evening. Waves subsiding to 1 to 2 feet.

Thursday: North wind less than 10 knots. Mostly sunny. Waves 1 to 2 feet.

Thursday Night: Variable wind less than 10 knots. Mostly clear. Waves calm to 1 foot.







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

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