National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
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: 1043 PM CST Sun Feb 15 2026		Print



Rest Of Tonight: Southwest wind 5 to 10 knots. Slight chance of rain and snow late in the evening. Slight chance of light freezing rain through the night. Chance of rain and snow after midnight. Patchy fog toward daybreak. Waves 1 foot or less.

Monday: West wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less.

Monday Night: West wind 5 knots becoming northeast early in the morning. Mostly clear. Waves 1 foot or less.

Tuesday: Northeast wind 20 to 25 knots with gales to around 35 knots. Partly sunny. Waves 1 foot or less. A gale warning may be needed.

note...wave height forecasts are for ice free areas.






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

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