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Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Zone Forecast

Tonight

West wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and early morning, then increasing to 25 knots late in the night. Slight chance of showers and thunderstorms early in the evening. Slight chance of showers and thunderstorms after midnight. Waves 3 to 5 feet subsiding to 1 to 2 feet after midnight.

Tuesday

Northwest wind 15 to 20 knots with gusts to around 25 knots. Mostly sunny. Waves 1 to 3 feet.

Tuesday Night

Northwest wind 10 to 15 knots. Gusts up to 25 knots decreasing to 20 knots in the late evening and overnight. Mostly clear. Waves 1 to 2 feet.

Wednesday

Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west with gusts to around 20 knots in the afternoon. Sunny. Waves 1 to 2 feet.