Coastal Waters Forecast for Port Sanilac to Port Huron MI (LHZ443) (Text-Only)
NWS Forecast for: Port Sanilac to Port Huron MI (LHZ443)
Issued by: National Weather Service Detroit/Pontiac, MI
Last Update: 340 PM EDT Fri Jul 18 2025
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Tonight: East winds 5 to 10 knots veering to the south after midnight. Clear. Waves 2 feet or less.

Saturday: South winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. Mostly sunny until late afternoon, then mostly cloudy with showers likely and a chance of thunderstorms early in the afternoon. Waves 2 feet or less.

Saturday Night: West winds 5 to 10 knots becoming northwest 10 to 15 knots after midnight. Mostly cloudy with showers likely and a chance of thunderstorms until early morning, then mostly cloudy after midnight. Waves 2 feet or less.

Sunday: North winds 10 to 15 knots. Partly cloudy until late afternoon then clearing. Waves 1 to 3 feet.

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







Zone Forecast: Port Sanilac to Port Huron MI (LHZ443)

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