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| 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: 1054 AM EDT Tue Jul 15 2025 | |
Rest Of Today: East winds 5 to 15 knots backing northwest in the afternoon, then veering north late. Haze. A chance of showers and thunderstorms by late morning. Showers and thunderstorms likely by mid afternoon. Waves calm to 2 feet. Tonight: North winds 5 to 15 knots becoming northeast 10 to 20 knots after midnight, then increasing to 15 to 25 knots late. Showers likely through midnight. A chance of thunderstorms. A chance of showers after midnight. Waves building to 3 to 5 feet occasionally to 7 feet. Wednesday: Northeast winds 15 to 25 knots diminishing to 10 to 20 knots late. Showers likely through early afternoon. A slight chance of thunderstorms. A chance of showers by mid afternoon. Waves subsiding to 2 to 4 feet. Wednesday Night: Northeast winds 5 to 15 knots backing north after midnight. A chance of showers. Waves subsiding to calm to 2 feet. Thursday: North winds 5 to 15 knots backing southwest by mid afternoon. Waves calm to 2 feet. Thursday Night: Southwest winds 5 to 15 knots. Waves calm to 2 feet. Friday: Southwest winds 5 to 15 knots backing south. A chance of showers. Waves calm to 2 feet. Saturday: East winds 5 to 15 knots backing northeast. A chance of showers. Waves calm to 2 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) | |
Visit your local NWS office at: https://www.weather.gov/mqt/ |