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: 957 PM EST Thu Feb 12 2026


Rest Of Tonight: Light and variable winds becoming southwest 5 to 10 knots early in the morning. Partly cloudy. Waves 2 feet or less.

Friday: Southwest winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 2 feet or less.

Friday Night: Southwest winds 15 to 20 knots becoming west 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 2 feet or less.

Saturday: Northwest winds 5 to 10 knots early in the morning becoming light and variable, then becoming south 5 to 10 knots early in the afternoon. Mostly sunny. Waves 2 feet or less.

wave heights are for ice free areas.

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