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: 1101 AM EDT Tue Sep 15 2026
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Rest Of Today: Southwest wind 20 to 25 knots veering northwest late. Gale force gusts up to 38 knots. Partly cloudy. Waves 2 to 4 feet building to 6 to 9 feet occasionally to 11 feet.

Tonight: Northwest wind 15 to 25 knots with gusts up to 33 knots diminishing to 10 to 15 knots late. Mostly clear. Waves subsiding to 2 to 3 feet.

Wednesday: Northwest wind less than 10 knots veering north in the afternoon. Mostly sunny. Waves subsiding to 1 to 2 feet.

Wednesday Night: Southeast wind less than 10 knots in the evening becoming variable. Partly cloudy in the evening then becoming mostly cloudy. Waves calm to 1 foot.







Zone Forecast: Munising to Grand Marais MI (LSZ250)

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