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Detroit/Pontiac, MI Local Forecast Office

12NM N Port Sanilac MI

Marine Zone Forecast

Today

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

Tonight

East winds 10 to 15 knots becoming southeast 15 to 20 knots in the late evening and early morning, then diminishing to 10 to 15 knots after midnight. Partly cloudy. Waves 2 feet or less building to 2 to 4 feet after midnight.

Sunday

South winds 10 to 15 knots diminishing to 5 to 10 knots in the late morning and early afternoon, then veering to the west early in the afternoon. Partly cloudy until late afternoon, then a chance of showers early in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon.

Sunday Night

Northwest winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and overnight. Partly cloudy. A chance of showers until early morning. Waves 2 feet or less building to 2 to 4 feet after midnight.

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