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Detroit/Pontiac, MI Local Forecast Office

12NM N Port Sanilac MI

Marine Zone Forecast

Today

South winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Partly cloudy in the morning becoming mostly cloudy. A chance of flurries in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the afternoon. Waves occasionally around 5 feet.

Tonight

South winds 15 to 20 knots becoming southwest 10 to 15 knots after midnight. Mostly cloudy. A chance of flurries early in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.

Thursday

West winds 5 to 10 knots. Mostly cloudy early in the morning becoming partly cloudy. Waves 2 feet or less.

Thursday Night

North winds 5 to 10 knots backing to the southwest in the late evening and overnight. Partly cloudy until early morning becoming mostly cloudy. Waves 2 feet or less.

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