| NWS Forecast for: Harbor Beach to Port Sanilac MI (LHZ442) Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 943 AM EDT Tue Oct 20 2026 | |
| Rest Of Today: East winds 5 to 10 knots. Mostly sunny. Waves 2 feet or less. Tonight: Northeast winds 5 to 10 knots becoming southeast 10 to 15 knots in the late evening and overnight. Clear. Waves 2 feet or less. Wednesday: South winds 5 to 10 knots. Sunny. Waves 2 feet or less. Wednesday Night: South winds 5 to 10 knots veering to the west in the late evening and overnight. Mostly clear. Waves 2 feet or less. see lake huron open lake forecast for days 3 through 5. | |
| Zone Forecast: Harbor Beach to Port Sanilac MI (LHZ442) | |
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