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30NM SE Grand Portage MN

Late This Afternoon

Northeast winds 20 to 30 knots. Waves 3 to 6 feet occasionally to 8 feet.

Tonight

Northeast winds 15 to 25 knots becoming east 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.

Monday

East winds 5 to 15 knots increasing to 15 to 25 knots. Waves building to 1 to 3 feet.

Monday Night

East winds 10 to 20 knots diminishing to 5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.

Tuesday

East winds 5 to 15 knots increasing to 10 to 20 knots by mid afternoon. Waves calm to 2 feet.

Tuesday Night

East winds 10 to 20 knots becoming southeast 5 to 15 knots after midnight. Waves calm to 2 feet.

Wednesday

Southeast winds 5 to 15 knots backing east by mid afternoon. Waves calm to 2 feet.

Wednesday Night

Southeast winds 10 to 20 knots veering south after midnight. Waves calm to 2 feet.

Thursday

South winds 5 to 15 knots. Waves calm to 2 feet.

Friday

South winds 5 to 15 knots backing southeast. Waves calm to 2 feet.

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401 PM EDT Sun Sep 20 2026