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Lake Huron from Port Austin to Harbor Beach 5NM Off Shore to the US/Canadian border Marine Forecast

Updated 3:44am EDT Aug 27, 2026
Zone Map
Synopsis
Moderate northwest winds in place through daytime Thursday following the passage of a cold front. High pressure, 30.20 inches, then expands over the central Great Lakes to close out the week.
Today
West winds 10 to 15 knots becoming northwest 5 to 10 knots in the afternoon. Waves 1 to 3 feet.
Tonight
North winds 5 to 10 knots increasing to 10 to 15 knots by midnight
Friday
North winds 5 to 10 knots. Waves 1 to 3 feet.
Friday Night
North winds 5 to 10 knots veering to the east by midnight
Saturday
South winds 5 to 10 knots increasing to 10 to 15 knots late in the evening. Waves 2 feet or less.
Sunday
South winds 10 to 15 knots decreasing to 5 to 10 knots by midnight. A chance of showers. A chance of thunderstorms. Rain showers likely by midnight. Waves 1 to 3 feet.
Monday
South winds 5 to 10 knots. Showers likely and a chance of thunderstorms early in the morning