| NWS Forecast for: Harbor Beach to Port Sanilac MI (LHZ442) Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 407 AM EDT Mon May 11 2026 | |
| Today: North winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Sunny. Waves 2 feet or less. Tonight: Northeast winds 5 to 10 knots early in the evening becoming light and variable. Clear. Waves 2 feet or less. Tuesday: South winds 5 to 10 knots increasing to 15 to 20 knots. Partly cloudy until late afternoon, then mostly cloudy with showers likely early in the afternoon. Waves 2 feet or less building to 2 to 4 feet early in the afternoon. Tuesday Night: South winds 20 to 25 knots with gusts to 30 knots becoming southwest 15 to 20 knots after midnight. Light showers until early morning, then a chance of showers after midnight. Waves 5 to 7 feet. Waves occasionally around 10 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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