Hazardous Weather Conditions

Last Update: 929 PM EDT Fri Jul 31 2026

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Detroit/Pontiac, MI Local Forecast Office

12NM N Port Sanilac MI

Marine Zone Forecast

Rest Of Tonight
Southeast winds 5 to 10 knots backing to the north early in the morning. Cloudy. A chance of showers and a slight chance of thunderstorms after midnight. Waves 2 feet or less.
Saturday
Northeast winds 5 to 10 knots increasing to 10 to 15 knots early in the afternoon. Cloudy. A chance of showers and a slight chance of thunderstorms early in the morning, then a chance of showers in the late morning and afternoon. Waves 2 feet or less.
Saturday Night
Northeast winds 10 to 15 knots. Cloudy. Showers likely and a slight chance of thunderstorms. Waves 1 to 3 feet.
Sunday
Northeast winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Showers early in the morning. Showers likely in the late morning and early afternoon, then a chance of showers early in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet in the late morning and afternoon. Waves occasionally around 7 feet. A small craft advisory may be needed.

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



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929 PM EDT Fri Jul 31 2026
 
 

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