Coastal Waters Forecast for Harbor Beach to Port Sanilac MI (LHZ442) (Text-Only)
NWS Forecast for: Harbor Beach to Port Sanilac MI (LHZ442)
Issued by: National Weather Service Detroit/Pontiac, MI
Last Update: 316 AM EDT Tue Aug 26 2025




Today: Northwest winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and early afternoon, then diminishing to 10 to 15 knots late in the afternoon. Mostly sunny. A slight chance of showers in the afternoon. A slight chance of waterspouts in the afternoon. Waves 2 to 4 feet.

Tonight: Northwest winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Mostly clear. A slight chance of showers early in the evening. A slight chance of waterspouts early in the evening. Waves 2 to 4 feet.

Wednesday: West winds 10 to 15 knots diminishing to 5 to 10 knots in the late morning and afternoon. Mostly sunny until late afternoon becoming partly cloudy. Waves 1 to 3 feet.

Wednesday Night: Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the late evening and overnight. Partly cloudy until early morning, then mostly cloudy with a chance of showers after midnight. Waves 1 to 3 feet.

see lake huron open lake forecast for days 3 through 5.







Zone Forecast: Harbor Beach to Port Sanilac MI (LHZ442)

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