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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. Partly cloudy in the morning, then mostly cloudy with a slight chance of showers in the afternoon. Waves 1 to 3 feet.

Tonight

Southwest winds 5 to 10 knots becoming northwest 10 to 15 knots in the late evening and early morning, then veering to the north after midnight. Partly cloudy. A slight chance of showers early in the evening. Waves 2 feet or less.

Sunday

North winds 10 to 15 knots becoming northwest 5 to 10 knots in the late morning and early afternoon, then increasing to 10 to 15 knots early in the afternoon. Partly cloudy until late afternoon becoming mostly cloudy. A chance of showers early in the afternoon. Waves 1 to 3 feet.

Sunday Night

Northwest winds 15 to 20 knots. Mostly cloudy early in the evening then clearing. Waves 2 to 4 feet.

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