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: 756 PM CST Thu Nov 12 2026
Print




Rest Of Tonight: North wind 15 to 20 knots. Gusts up to 25 knots in the evening. Mostly cloudy. Waves 1 to 3 feet.

Friday: North wind 15 to 20 knots easing to 10 to 15 knots in the afternoon. Partly sunny. Waves 1 to 3 feet.

Friday Night: North wind 10 to 15 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 2 feet.

Saturday: North wind 5 to 10 knots becoming west late in the afternoon. Mostly sunny. Waves 1 foot or less.







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

Visit your local NWS office at: https://www.weather.gov/dlh