Coastal Waters Forecast for Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays (LSZ247) (Text-Only)
NWS Forecast for: Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays (LSZ247)
Issued by: National Weather Service Marquette, MI
Last Update: 1101 PM EDT Fri Sep 19 2025
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Rest Of Tonight: East wind 10 to 15 knots with gusts up to 23 knots. Partly cloudy by midnight, then mostly cloudy with a slight chance of showers and thunderstorms late. Waves 2 to 4 feet.

Saturday: Southeast wind 5 to 15 knots with gusts up to 24 knots. Partly cloudy. A chance of showers and a slight chance of thunderstorms through early afternoon, then a slight chance of showers and thunderstorms late. Waves subsiding to 2 to 3 feet.

Saturday Night: Southeast wind less than 10 knots with gusts up to 20 knots. Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Waves subsiding to 1 to 2 feet.

Sunday: Variable wind less than 10 knots. Gusts up to 12 knots. Mostly cloudy. A chance of showers in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet.







Zone Forecast: Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays (LSZ247)

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