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: 341 PM EDT Sat Apr 25 2026




Tonight: North winds 10 to 15 knots becoming northeast 5 to 10 knots after midnight. Mostly clear. Waves 1 to 3 feet.

Sunday: Northeast winds 5 to 10 knots. Mostly sunny early in the morning becoming partly cloudy. Waves 2 feet or less.

Sunday Night: Northeast winds 5 to 10 knots veering to the east in the late evening and early morning, then becoming southeast 10 to 15 knots after midnight. Mostly clear. Waves 2 feet or less.

Monday: Southeast winds 10 to 15 knots increasing to 15 to 20 knots early in the afternoon. Mostly sunny until late afternoon becoming partly cloudy. Waves 1 to 3 feet building to 3 to 5 feet early in the afternoon. Waves occasionally around 7 feet. A small craft advisory may be needed.

see lake huron open lake forecast for days 3 through 5.







Zone Forecast: Harbor Beach to Port Sanilac MI (LHZ442)

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