Synopsis
South winds 15 to 25 knots. Waves 3 to 6 feet occasionally to 8 feet.
Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border Marine Forecast
NOAA marine forecast
Text forecast
Updated 4:06am EDT Oct 11, 2026
Early This Morning
Southwest winds 15 to 25 knots diminishing to 10 to 20 knots in the afternoon, then becoming north 5 to 15 knots late. Waves subsiding to 1 to 3 feet.
Today
Northeast winds 10 to 20 knots increasing to 20 to 30 knots after midnight. A chance of showers. Waves subsiding to calm to 2 feet, then building to 5 to 8 feet occasionally to 10 feet.
Tonight
Northeast winds 20 to 30 knots. Showers through early afternoon, then a slight chance of showers by mid afternoon.
Monday
Northeast winds 20 to 30 knots diminishing to 10 to 20 knots after midnight. Showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
Monday Night
Northeast winds 10 to 20 knots becoming north 5 to 15 knots by mid afternoon. Waves subsiding to calm to 2 feet.
Tuesday
Northwest winds 5 to 15 knots. Waves calm to 2 feet.
Tuesday Night
Northwest winds 5 to 15 knots veering east. Waves calm to 2 feet.
Wednesday
Southeast winds 15 to 25 knots becoming south gales to 40 knots. Showers likely. Waves building to 4 to 7 feet occasionally to 9 feet.
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