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: 346 AM EST Mon Jan 12 2026




Today: Southwest winds 15 to 20 knots. Gusts to 30 knots early in the morning. Mostly cloudy in the morning becoming partly cloudy. Waves 1 to 3 feet.

Tonight: Southwest winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less.

Tuesday: South winds 15 to 20 knots becoming southwest 20 to 25 knots in the late morning and afternoon. Mostly cloudy. A chance of light snow early in the morning. A chance of light rain until late afternoon, then light rain likely early in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet in the late morning and afternoon. Waves occasionally around 7 feet. A small craft advisory may be needed.

Tuesday Night: Southwest winds 15 to 20 knots becoming west 10 to 15 knots after midnight. Mostly cloudy. A chance of light rain until early morning. 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: Harbor Beach to Port Sanilac MI (LHZ442)

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