| NWS Forecast for: Harbor Beach to Port Sanilac MI (LHZ442) Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 343 AM EDT Sun May 31 2026 | |
| Today: Light and variable winds becoming east 5 to 10 knots in the afternoon. Sunny. Waves 2 feet or less. Tonight: Light and variable winds. Clear. Waves 2 feet or less. Monday: North winds 5 to 10 knots increasing to 10 to 15 knots early in the afternoon. Sunny. Waves 2 feet or less. Monday Night: North winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Clear. 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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