Last Update: 1147 AM CST Thu Jan 15 2026

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Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Zone Forecast

Rest Of Today
Southwest wind 20 to 25 knots. Gusts up to 30 knots in the afternoon. Snow likely late in the morning, then snow early in the afternoon. Snow likely late. Areas of dense fog early in the afternoon. Freezing spray in the afternoon. Patchy fog late. Waves 2 to 4 feet building to 4 to 7 feet in the afternoon. Waves occasionally to 9 feet.
Tonight
Southwest wind 15 to 20 knots with gusts to around 25 knots becoming northwest 5 to 10 knots after midnight. Freezing spray in the evening. Patchy fog through the night. Snow likely in the evening. Chance of snow after midnight. Waves 4 to 7 feet subsiding to 2 to 4 feet after midnight. Waves occasionally to 9 feet.
Friday
Northwest wind 10 to 15 knots. Gusts up to 25 knots. Patchy fog in the morning. Chance of snow through the day. Waves 1 to 2 feet.
Friday Night
North wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots early in the morning. Slight chance of snow through the night. Waves 1 to 3 feet.

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



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1147 AM CST Thu Jan 15 2026
 
 

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