| NWS Forecast for: Port Sanilac to Port Huron MI (LHZ443) Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 339 AM EDT Tue Jul 21 2026 | |
Today: Southwest winds 15 to 20 knots veering to the west late in the afternoon. Partly cloudy with a chance of showers and thunderstorms. Patchy smoke in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. Tonight: Northwest winds 20 to 25 knots. Partly cloudy. A chance of showers and thunderstorms early in the evening. Waves 3 to 5 feet. Waves occasionally around 7 feet. Wednesday: Northwest winds 20 to 25 knots diminishing to 15 to 20 knots in the late morning and afternoon. Partly cloudy early in the morning then clearing. Waves 3 to 5 feet. Waves occasionally around 7 feet. Wednesday Night: North winds 10 to 15 knots becoming northwest 5 to 10 knots in the late evening and overnight. Clear. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. see lake huron open lake forecast for days 3 through 5. | |
| Zone Forecast: Port Sanilac to Port Huron MI (LHZ443) | |
Visit your local NWS office at: https://www.weather.gov/dtx |