| NWS Forecast for: Harbor Beach to Port Sanilac MI (LHZ442) Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 941 AM EDT Fri Jul 31 2026 |  |
Rest Of Today: South winds 5 to 10 knots. Mostly sunny late in the morning becoming partly cloudy. Waves 2 feet or less. Tonight: Southeast winds 5 to 10 knots veering to the northwest in the late evening and early morning, then veering to the north after midnight. Cloudy. A slight chance of showers and thunderstorms in the late evening and early morning. A chance of showers and a slight chance of thunderstorms after midnight. Waves 2 feet or less. Saturday: Northeast winds 5 to 10 knots. Mostly cloudy. A chance of showers and a slight chance of thunderstorms until late afternoon, then showers likely early in the afternoon. Waves 2 feet or less. Saturday Night: Northeast winds 10 to 15 knots. Cloudy with showers likely. 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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