News Headlines
Coastal Waters Forecast for Port Sanilac to Port Huron MI (LHZ443) (Text-Only)
NWS Forecast for: Port Sanilac to Port Huron MI (LHZ443)
Issued by: National Weather Service Detroit/Pontiac, MI
Last Update: 857 PM EST Wed Jan 14 2026
Print




Rest Of Tonight: Northwest winds to 30 knots. Mostly cloudy with light snow likely. Freezing spray. Waves 8 to 12 feet. Waves occasionally around 15 feet.

Thursday: Northwest winds 20 to 25 knots. Gusts to 30 knots until late afternoon. Mostly cloudy until late afternoon becoming partly cloudy. A chance of snow early in the morning, then a slight chance of light snow in the late morning and early afternoon. Heavy freezing spray. Waves 6 to 9 feet. Waves occasionally around 12 feet.

Thursday Night: West winds 10 to 15 knots backing to the southwest after midnight. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late evening and overnight. Waves occasionally around 7 feet.

Friday: South winds 15 to 20 knots. Light snow until late afternoon, then light snow likely early in the afternoon. Waves 3 to 5 feet. Waves occasionally around 7 feet.

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