Coastal Waters Forecast for Grand Portage to Grand Marais MN (LSZ140) (Text-Only)
NWS Forecast for: Grand Portage to Grand Marais MN (LSZ140)
Issued by: National Weather Service Duluth, MN
Last Update: 957 PM CDT Thu May 8 2025




Rest Of Tonight: Northeast wind 5 knots becoming west toward daybreak. Clear. Waves 1 foot or less.

Friday: Southwest wind 15 to 20 knots. Chance of rain showers in the afternoon. Waves 1 to 2 feet building to 1 to 3 feet in the afternoon.

Friday Night: West wind 5 to 10 knots becoming north 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Mostly clear. Waves 1 to 2 feet.

Saturday: Northeast wind 5 to 10 knots becoming southeast late in the afternoon. Sunny. Waves 1 to 2 feet.







Zone Forecast: Grand Portage to Grand Marais MN (LSZ140)

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