Coastal Waters Forecast for Harbor Beach to Port Sanilac MI (LHZ442) (Text-Only)
NWS Forecast for: Harbor Beach to Port Sanilac MI (LHZ442)
Issued by: National Weather Service Detroit/Pontiac, MI
Last Update: 957 AM EST Wed Nov 5 2025




Rest Of Today: Southwest winds 15 to 20 knots becoming northwest 20 to 25 knots with gusts to 35 knot gales in the afternoon. Cloudy with a chance of light rain. Waves 3 to 5 feet building to 6 to 9 feet late in the afternoon. Waves occasionally around 12 feet.

Tonight: Northwest winds to 30 knots with gusts to 35 knot gales diminishing to 20 to 25 knots with gusts to 30 knots in the late evening and overnight. Mostly clear. A chance of light rain early in the evening. Waves 6 to 9 feet. Waves occasionally around 12 feet.

Thursday: Northwest winds 15 to 20 knots becoming west 5 to 10 knots. Mostly sunny. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the afternoon. Waves occasionally around 7 feet.

Thursday Night: South winds 10 to 15 knots increasing to 20 to 25 knots with gusts to 30 knots in the late evening and overnight. Partly cloudy early in the evening becoming cloudy. A chance of light rain after midnight. Waves 1 to 3 feet building to 5 to 7 feet. Waves occasionally around 10 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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