| NWS Forecast for: Port Sanilac to Port Huron MI (LHZ443) Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 945 AM EDT Tue Apr 21 2026 |  |
Rest Of Today: South winds 15 to 20 knots diminishing to 10 to 15 knots late in the afternoon. Mostly cloudy with a chance of sprinkles late in the morning, then mostly sunny with a slight chance of showers in the afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally around 7 feet. Tonight: Southwest winds 5 to 10 knots veering to the northwest in the late evening and overnight. Partly cloudy. A slight chance of showers until early morning. Waves 2 feet or less. Wednesday: North winds 5 to 10 knots. Mostly sunny. Waves 2 feet or less. Wednesday Night: Northeast winds 5 to 10 knots until early morning becoming light and variable. Clear. Waves 2 feet or less. see lake huron open lake forecast for days 3 through 5. | |
| Zone Forecast: Port Sanilac to Port Huron MI (LHZ443) | |
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