Coastal Waters Forecast for Grand Marais to Whitefish Point MI (LSZ251) (Text-Only)
NWS Forecast for: Grand Marais to Whitefish Point MI (LSZ251)
Issued by: National Weather Service Marquette, MI
Last Update: 1100 PM EDT Thu Aug 20 2026
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Rest Of Tonight: South wind 10 to 15 knots. Cloudy. A chance of showers by midnight, then a chance of showers and a slight chance of thunderstorms late. Waves calm to 1 foot building to 1 to 2 feet.

Friday: South wind 10 to 15 knots becoming 5 to 15 knots late. Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet.

Friday Night: West wind less than 10 knots veering northwest 10 to 15 knots after midnight. Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Waves 1 to 2 feet.

Saturday: Northwest wind 10 to 20 knots. Mostly cloudy. Waves building to 2 to 4 feet.







Zone Forecast: Grand Marais to Whitefish Point MI (LSZ251)

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