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: 324 AM EST Sun Nov 30 2025




Today: Southwest winds 20 to 25 knots veering to the west with gusts to 30 knots in the afternoon. Light rain and light snow in the morning, then light snow likely and a slight chance of light rain in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet early in the afternoon, then building to 5 to 7 feet late in the afternoon. Waves occasionally around 10 feet.

Tonight: Northwest winds to 30 knots diminishing to 15 to 20 knots. Mostly cloudy early in the evening becoming mostly clear. A chance of light snow until early morning, then a slight chance of light snow after midnight. Waves 6 to 9 feet. Waves occasionally around 12 feet.

Monday: Southwest winds 10 to 15 knots. Mostly sunny becoming partly cloudy in the late morning and early afternoon becoming mostly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning and afternoon. Waves occasionally around 7 feet.

Monday Night: Southwest winds 10 to 15 knots. Light snow likely until early morning, then light snow after midnight. Waves 1 to 3 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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