Last Update: 945 AM EST Thu Nov 20 2025

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Detroit/Pontiac, MI Local Forecast Office

16NM NE Port Sanilac MI

Marine Zone Forecast

Rest Of Today
South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Patchy drizzle late in the morning. Waves 1 to 3 feet.
Tonight
Southwest winds 10 to 15 knots. A chance of rain. Waves 2 to 4 feet.
Friday
West winds 10 to 15 knots. A chance of rain in the morning. Waves 2 to 4 feet.
Friday Night
Northwest winds 10 to 15 knots. Waves 3 to 5 feet.
Saturday
North winds 10 to 15 knots becoming northwest 5 to 10 knots late in the morning...then backing to the southwest late in the afternoon increasing to 10 to 15 knots late in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Sunday
Southwest winds 15 to 20 knots becoming west 10 to 15 knots until early morning. Waves 3 to 5 feet.
Monday
West winds 10 to 15 knots backing to the south until early morning. A chance of. Waves 2 to 4 feet subsiding to 1 to 3 feet.





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945 AM EST Thu Nov 20 2025
 
 

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