7-Day Forecast 43.43°N 82.55°W (Text-Only)
NWS Forecast for: Port Sanilac MI
Issued by: National Weather Service Detroit/Pontiac, MI
Last Update: 1:24 am EDT Apr 19, 2026




Overnight: Partly cloudy, with a low around 2. West wind 18 to 21 km/h, with gusts as high as 32 km/h.

Sunday: Rain showers likely between 1pm and 4pm, then snow showers, possibly mixed with rain. Some thunder is also possible. High near 8. West wind 16 to 23 km/h, with gusts as high as 35 km/h. Chance of precipitation is 80%. New snow accumulation of less than one centimeter possible.

Sunday Night: Snow showers likely, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -3. North northwest wind 21 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 60%. New snow accumulation of less than one centimeter possible.

Monday: Mostly sunny, with a high near 3. Northwest wind 11 to 18 km/h, with gusts as high as 29 km/h.

Monday Night: Partly cloudy, with a low around -1. South wind 11 to 21 km/h, with gusts as high as 35 km/h.

Tuesday: Partly sunny, with a high near 14.

Tuesday Night: Partly cloudy, with a low around 4.

Wednesday: Sunny, with a high near 10.

Wednesday Night: Mostly clear, with a low around 4.

Thursday: Mostly sunny, with a high near 16.

Thursday Night: Partly cloudy, with a low around 9.

Friday: A chance of showers. Partly sunny, with a high near 18.

Friday Night: A chance of showers. Mostly cloudy, with a low around 7.

Saturday: A chance of showers. Partly sunny, with a high near 13.



Port Sanilac MI
 43.43°N 82.55°W (Elev. 607 m)

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