| 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: 401 PM EDT Fri Jun 5 2026 |  |
Late This Afternoon: Southwest winds 5 to 15 knots. Areas of dense fog. A slight chance of showers and thunderstorms. Waves calm to 2 feet. Tonight: Southwest winds 5 to 15 knots veering west after midnight. A slight chance of rain showers through midnight. Patchy dense fog. Waves calm to 2 feet. Saturday: West winds less than 10 knots backing southwest in the afternoon, then increasing to 5 to 15 knots late. Patchy fog. Waves calm to 2 feet. Saturday Night: East winds 5 to 15 knots. Waves calm to 2 feet. Sunday: East winds 5 to 15 knots becoming northeast 10 to 20 knots by mid afternoon. Waves building to 2 to 4 feet. Sunday Night: East winds 10 to 20 knots becoming southeast 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet. Monday: East winds 5 to 15 knots increasing to 10 to 20 knots by mid afternoon. A chance of showers. Waves building to 2 to 4 feet. Monday Night: Southeast winds 5 to 15 knots. Showers likely and a chance of thunderstorms. Waves subsiding to 1 to 3 feet. Tuesday: Northeast winds 5 to 15 knots veering east. Waves subsiding to calm to 2 feet. Wednesday: East winds 5 to 15 knots veering southeast. A chance of showers. Waves building 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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