Coastal Waters Forecast for Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border (LSZ264) (Text-Only)
NWS Forecast for: Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border (LSZ264)
Issued by: National Weather Service Marquette, MI
Last Update: 400 AM EDT Thu Jun 18 2026


Early This Morning: Northwest winds 5 to 15 knots. Waves calm to 2 feet.

Today: West winds 10 to 20 knots. A slight chance of showers by mid afternoon. Waves building to 1 to 3 feet.

Tonight: West winds 5 to 15 knots veering northwest after midnight. A slight chance of showers through midnight. Waves 1 to 3 feet.

Friday: Northwest winds 5 to 15 knots backing southwest late. Waves subsiding to calm to 2 feet.

Friday Night: Southwest winds 5 to 15 knots veering west after midnight. A slight chance of showers after midnight. Waves calm to 2 feet.

Saturday: West winds 5 to 15 knots. Waves calm to 2 feet.

Saturday Night: West winds 5 to 15 knots becoming northwest less than 10 knots after midnight. Waves calm to 2 feet.

Sunday: Northwest winds less than 10 knots increasing to 5 to 15 knots. Waves calm to 2 feet.

Monday: West winds 5 to 15 knots. Waves calm to 2 feet.







Zone Forecast: Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border (LSZ264)

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