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Detroit/Pontiac, MI Local Forecast Office

18NM ENE Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:WSW wind around 16 kt. A chance of snow showers, mainly after 1pm.   Waves around 2 ft.

      High: 17 °F

      WSW 16kt
      2ft

    • Wednesday Night

      Wednesday Night:W wind 16 to 20 kt. A slight chance of snow showers.   Waves 2 to 4 ft.

      Low: 12 °F

      W 20kt
      2-4ft

    • Thursday

      Thursday:NW wind 15 to 18 kt. Partly sunny. Waves 3 to 4 ft.

      High: 14 °F

      NW 18kt
      3-4ft

    • Thursday Night

      Thursday Night:NNW wind 12 to 14 kt. Mostly cloudy. Waves around 3 ft.

      Low: 6 °F

      NNW 14kt
      3ft

    • Friday

      Friday:NW wind 13 to 15 kt. Mostly cloudy. Waves 3 to 4 ft.

      High: 14 °F

      NW 15kt
      3-4ft

    • Friday Night

      Friday Night:NW wind 12 to 16 kt becoming N after midnight. Mostly cloudy. Waves 3 to 4 ft.

      Low: 10 °F

      NW 16kt
      3-4ft

    • Saturday

      Saturday:N wind around 14 kt. Mostly cloudy. Waves around 3 ft.

      High: 17 °F

      N 14kt
      3ft

    • Saturday Night

      Saturday Night:N wind 12 to 15 kt. Mostly cloudy. Waves 2 to 3 ft.

      Low: 13 °F

      N 15kt
      2-3ft

    • Sunday

      Sunday:N wind 14 to 16 kt. Mostly sunny. Waves 2 to 3 ft.

      High: 22 °F

      N 16kt
      2-3ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:25 am EST Jan 28, 2026
Forecast Valid: 3am EST Jan 28, 2026-6pm EST Feb 3, 2026

View Nearby Observations

Detailed Forecast

Wednesday
WSW wind around 16 kt. A chance of snow showers, mainly after 1pm. Waves around 2 ft.
Wednesday Night
W wind 16 to 20 kt. A slight chance of snow showers. Waves 2 to 4 ft.
Thursday
NW wind 15 to 18 kt. Partly sunny. Waves 3 to 4 ft.
Thursday Night
NNW wind 12 to 14 kt. Mostly cloudy. Waves around 3 ft.
Friday
NW wind 13 to 15 kt. Mostly cloudy. Waves 3 to 4 ft.
Friday Night
NW wind 12 to 16 kt becoming N after midnight. Mostly cloudy. Waves 3 to 4 ft.
Saturday
N wind around 14 kt. Mostly cloudy. Waves around 3 ft.
Saturday Night
N wind 12 to 15 kt. Mostly cloudy. Waves 2 to 3 ft.
Sunday
N wind 14 to 16 kt. Mostly sunny. Waves 2 to 3 ft.

Wave heights are for ice free areas.


*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 43.53°N 82.15°W
Last Update: 3:25 am EST Jan 28, 2026
Forecast Valid: 3am EST Jan 28, 2026-6pm EST Feb 3, 2026
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