Coastal Waters Forecast for Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park (LSZ263) (Text-Only)
NWS Forecast for: Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park (LSZ263)
Issued by: National Weather Service Marquette, MI
Last Update: 400 AM EDT Thu Jun 25 2026
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Early This Morning: Northeast winds 5 to 15 knots. Patchy fog. Waves calm to 2 feet.

Today: Northeast winds 5 to 15 knots becoming north less than 10 knots in the afternoon, then backing west late. Patchy dense fog through early afternoon. Waves calm to 2 feet.

Tonight: West winds 5 to 15 knots becoming southwest less than 10 knots after midnight. Waves calm to 2 feet.

Friday: Southwest winds less than 10 knots becoming northeast 5 to 15 knots in the afternoon. Waves calm to 2 feet.

Friday Night: East winds 5 to 15 knots. Waves calm to 2 feet.

Saturday: East winds 5 to 15 knots becoming northeast 10 to 20 knots by mid afternoon. Waves calm to 2 feet.

Saturday Night: East winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves building to 1 to 3 feet, then subsiding to calm to 2 feet.

Sunday: East winds 15 to 25 knots veering southeast. A chance of showers. Waves building to 3 to 6 feet occasionally to 8 feet.

Monday: Southeast winds 10 to 20 knots veering south. A chance of showers and thunderstorms. Waves subsiding to 1 to 3 feet.







Zone Forecast: Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park (LSZ263)

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