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Coastal Waters Forecast for Munising to Grand Marais MI (LSZ250) (Text-Only)
NWS Forecast for: Munising to Grand Marais MI (LSZ250)
Issued by: National Weather Service Marquette, MI
Last Update: 501 PM EDT Wed Sep 9 2026		Print



Late This Afternoon: Northwest wind up to 30 knots with gale force gusts up to 41 knots. Sunny. Waves 5 to 8 feet occasionally to 10 feet building to 6 to 9 feet occasionally to 11 feet.

Tonight: West wind 20 to 25 knots with gale force gusts up to 35 knots veering northwest 15 to 20 knots with gale force gusts up to 35 knots by midnight. Clear. Waves subsiding to 3 to 6 feet occasionally to 8 feet.

Thursday: Northwest wind 5 to 15 knots. Sunny. Waves subsiding to 1 to 2 feet.

Thursday Night: Southeast wind less than 10 knots veering south 10 to 15 knots after midnight. Clear. Waves 1 to 2 feet.

Friday: South wind 15 to 20 knots with gusts up to 29 knots. Mostly sunny. Waves building to 2 to 3 feet.






Zone Forecast: Munising to Grand Marais MI (LSZ250)

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