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Detroit/Pontiac, MI Local Forecast Office

18NM ENE Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:WNW wind 13 to 16 kt, with gusts as high as 22 kt. Partly cloudy. Waves 1 to 2 ft.

      Low: 22 °F

      WNW 16kt
      1-2ft

    • Thursday

      Thursday:WNW wind around 9 kt becoming SW in the afternoon. Mostly sunny. Waves around 1 ft.

      High: 30 °F

      WNW 9kt
      1ft

    • Thursday Night

      Thursday Night:SSW wind 10 to 15 kt. Mostly cloudy. Waves 1 to 2 ft.

      Low: 30 °F

      SSW 15kt
      1-2ft

    • Friday

      Friday:SSW wind 16 to 20 kt. Mostly sunny. Waves 3 to 4 ft.

      High: 41 °F

      SSW 20kt
      3-4ft

    • Friday Night

      Friday Night:S wind 19 to 23 kt becoming W after midnight. Mostly cloudy. Waves 3 to 5 ft.

      Low: 28 °F

      S 23kt
      3-5ft

    • Saturday

      Saturday:WNW wind 14 to 18 kt becoming NNW in the afternoon. Mostly cloudy. Waves around 2 ft.

      High: 32 °F

      WNW 18kt
      2ft

    • Saturday Night

      Saturday Night:NNW wind 14 to 19 kt. A chance of snow.   Waves 2 to 3 ft.

      Low: 17 °F

      NNW 19kt
      2-3ft

    • Sunday

      Sunday:N wind 12 to 17 kt. Mostly cloudy. Waves around 3 ft.

      High: 20 °F

      N 17kt
      3ft

    • Sunday Night

      Sunday Night:ENE wind 9 to 11 kt. Partly cloudy. Waves 1 to 2 ft.

      Low: 14 °F

      ENE 11kt
      1-2ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:13 pm EST Feb 25, 2026
Forecast Valid: 11pm EST Feb 25, 2026-6pm EST Mar 4, 2026

View Nearby Observations

Detailed Forecast

Overnight
WNW wind 13 to 16 kt, with gusts as high as 22 kt. Partly cloudy. Waves 1 to 2 ft.
Thursday
WNW wind around 9 kt becoming SW in the afternoon. Mostly sunny. Waves around 1 ft.
Thursday Night
SSW wind 10 to 15 kt. Mostly cloudy. Waves 1 to 2 ft.
Friday
SSW wind 16 to 20 kt. Mostly sunny. Waves 3 to 4 ft.
Friday Night
S wind 19 to 23 kt becoming W after midnight. Mostly cloudy. Waves 3 to 5 ft.
Saturday
WNW wind 14 to 18 kt becoming NNW in the afternoon. Mostly cloudy. Waves around 2 ft.
Saturday Night
NNW wind 14 to 19 kt. A chance of snow. Waves 2 to 3 ft.
Sunday
N wind 12 to 17 kt. Mostly cloudy. Waves around 3 ft.
Sunday Night
ENE wind 9 to 11 kt. Partly cloudy. Waves 1 to 2 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: 8:13 pm EST Feb 25, 2026
Forecast Valid: 11pm EST Feb 25, 2026-6pm EST Mar 4, 2026
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