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 AM EDT Thu Sep 3 2026


Rest Of Today: Northeast wind 5 to 15 knots. Partly cloudy. Waves calm to 1 foot building to 1 to 2 feet.

Tonight: East wind 5 to 15 knots. Mostly cloudy. A slight chance of showers and thunderstorms by midnight. Waves 1 to 2 feet.

Friday: East wind 5 to 15 knots increasing to 15 to 20 knots in the afternoon. Partly cloudy. A slight chance of showers in the morning. Waves building to 2 to 3 feet.

Friday Night: East wind 5 to 15 knots. Partly cloudy with a slight chance of showers in the evening, then mostly cloudy after midnight. Waves subsiding to 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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