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: 343 AM EDT Fri Jul 3 2026
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Today: Southwest winds 5 to 10 knots becoming west 10 to 15 knots early in the afternoon, then diminishing to 5 to 10 knots late in the afternoon. Partly cloudy with a chance of showers and thunderstorms. Waves 2 feet or less.

Tonight: Southwest winds 5 to 10 knots early in the evening becoming light and variable, then becoming west 5 to 10 knots after midnight. Partly cloudy. A chance of showers and thunderstorms until early morning, then a chance of showers after midnight. Waves 2 feet or less.

Saturday: Northwest winds 5 to 10 knots veering to the north in the late morning and afternoon. Partly cloudy. A chance of showers early in the morning. A chance of showers early in the afternoon. Waves 2 feet or less.

Saturday Night: Northeast winds 5 to 10 knots veering to the east after midnight. Partly cloudy early in the evening becoming mostly cloudy. A chance of showers. Waves 2 feet or less.

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







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

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