| NWS Forecast for: Harbor Beach to Port Sanilac MI (LHZ442) Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 338 AM EDT Tue Sep 8 2026 | |
| Today: Light and variable winds becoming southeast 5 to 10 knots in the late morning and afternoon. Partly cloudy in the morning becoming mostly cloudy. Waves 2 feet or less. Tonight: Southeast winds 10 to 15 knots becoming south 15 to 20 knots in the late evening and early morning, then diminishing to 10 to 15 knots after midnight. Mostly cloudy. A slight chance of showers until early morning, then a chance of showers and a slight chance of thunderstorms after midnight. Waves 1 to 3 feet. Wednesday: Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Mostly cloudy. A chance of showers early in the morning. Light showers likely in the late morning and early afternoon. A chance of showers early in the afternoon. Waves 1 to 3 feet. Wednesday Night: West winds 15 to 20 knots diminishing to 10 to 15 knots in the late evening and overnight. Partly cloudy. A chance of showers early in the evening. 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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