Last Update: 1009 PM EST Tue Dec 9 2025

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Detroit/Pontiac, MI Local Forecast Office

12NM N Port Sanilac MI

Marine Zone Forecast

Rest Of Tonight
South winds 10 to 15 knots. A chance of light snow this evening, then light snow and a slight chance of rain after midnight. Waves 1 to 3 feet.
Wednesday
East winds 10 to 15 knots becoming north 20 to 25 knots with gusts to 30 knots in the late morning and early afternoon, then increasing to 30 knots with gusts to 35 knot gales early in the afternoon. Light snow and a slight chance of light rain until late afternoon, then a slight chance of light snow early in the afternoon. Waves 1 to 3 feet building to 6 to 9 feet in the late morning and afternoon. Waves occasionally around 12 feet.
Wednesday Night
Northwest gales to 35 knot gales diminishing to 20 to 25 knots in the late evening and overnight. Partly cloudy with a chance of light snow. Waves 8 to 12 feet subsiding to 5 to 7 feet after midnight. Waves occasionally around 15 feet.
Thursday
Northwest winds 20 to 25 knots becoming west 15 to 20 knots early in the afternoon. Partly cloudy with a chance of light snow. Waves 4 to 6 feet. Waves occasionally around 7 feet.

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



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1009 PM EST Tue Dec 9 2025
 
 

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