| NWS Forecast for: Harbor Beach to Port Sanilac MI (LHZ442) Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 1006 PM EDT Sat Sep 20 2025 |  |
Rest Of Tonight: Southeast winds 15 to 20 knots diminishing to 10 to 15 knots early in the morning. Partly cloudy. A slight chance of showers after midnight. Waves 3 to 5 feet. Waves occasionally around 7 feet. Sunday: Southeast winds 10 to 15 knots diminishing to 5 to 10 knots early in the afternoon. Partly cloudy until late afternoon becoming mostly cloudy. A chance of showers until late afternoon, then showers likely and a chance of thunderstorms early in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. Sunday Night: South winds 10 to 15 knots. Showers and a chance of thunderstorms until early morning, then showers likely after midnight. Waves 2 feet or less. Monday: Southwest winds 5 to 10 knots. Mostly cloudy until late afternoon becoming partly cloudy. Showers likely early in the morning, then a chance of showers in the late morning and early afternoon. Light showers likely and a chance of thunderstorms early in the afternoon. 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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