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Harbor Beach to Port Sanilac MI Marine Forecast

Updated 3:46am EDT Aug 27, 2026
Zone Map
Today
West winds 5 to 10 knots increasing to 10 to 15 knots late in the morning, then becoming northwest 5 to 10 knots in the afternoon. Partly cloudy. A slight chance of showers in the afternoon. Waves 2 feet or less.
Tonight
North winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and overnight. Partly cloudy. A slight chance of showers until early morning. Waves 2 feet or less.
Friday
North winds 5 to 10 knots. Mostly sunny. Waves 2 feet or less.
Friday Night
Northeast winds 5 to 10 knots veering to the southeast in the late evening and overnight. Mostly clear. Waves 2 feet or less.