Hazardous Weather Conditions

Last Update: 811 AM CDT Thu May 21 2026

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Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Zone Forecast

Rest Of Today
East wind 5 to 10 knots. Mostly sunny. Waves 1 foot or less.
Tonight
Northeast wind 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet.
Friday
Northeast wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon. A small craft advisory may be needed.
Friday Night
East wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots after midnight. Chance of rain showers after midnight. Waves 3 to 5 feet. A small craft advisory may be needed.



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811 AM CDT Thu May 21 2026
 
 

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