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Detroit/Pontiac, MI Local Forecast Office

18NM ENE Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:NNW wind 12 to 15 kt. Mostly sunny. Waves 1 ft or less.

      High: 24 °F

      NNW 15kt
      < 1ft

    • Tonight

      Tonight:NNW wind 5 to 8 kt becoming variable and less than 5 kt. Partly cloudy. Waves 1 ft or less.

      Low: 14 °F

      NNW 8kt⇓
      < 1ft

    • Friday

      Friday:SSW wind 8 to 16 kt. Mostly sunny. Waves 1 ft or less.

      High: 33 °F

      SSW 16kt
      < 1ft

    • Friday Night

      Friday Night:SW wind 9 to 16 kt becoming NW after midnight. Partly cloudy. Waves 1 ft or less.

      Low: 26 °F

      SW 16kt
      < 1ft

    • Saturday

      Saturday:NW wind 5 to 7 kt becoming S in the afternoon. Mostly sunny. Waves 1 ft or less.

      High: 32 °F

      NW 7kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind 7 to 9 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 25 °F

      S 9kt
      < 1ft

    • Sunday

      Sunday:S wind around 10 kt. Partly sunny. Waves 1 ft or less.

      High: 36 °F

      S 10kt
      < 1ft

    • Sunday Night

      Sunday Night:S wind around 8 kt becoming W after midnight. Partly cloudy. Waves 1 ft or less.

      Low: 27 °F

      S 8kt
      < 1ft

    • Washington's Birthday

      Washington's Birthday:S wind 10 to 12 kt. Partly sunny. Waves 1 ft or less.

      High: 37 °F

      S 12kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:24 pm EST Feb 12, 2026
Forecast Valid: 1pm EST Feb 12, 2026-6pm EST Feb 18, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
NNW wind 12 to 15 kt. Mostly sunny. Waves 1 ft or less.
Tonight
NNW wind 5 to 8 kt becoming variable and less than 5 kt. Partly cloudy. Waves 1 ft or less.
Friday
SSW wind 8 to 16 kt. Mostly sunny. Waves 1 ft or less.
Friday Night
SW wind 9 to 16 kt becoming NW after midnight. Partly cloudy. Waves 1 ft or less.
Saturday
NW wind 5 to 7 kt becoming S in the afternoon. Mostly sunny. Waves 1 ft or less.
Saturday Night
S wind 7 to 9 kt. Mostly cloudy. Waves 1 ft or less.
Sunday
S wind around 10 kt. Partly sunny. Waves 1 ft or less.
Sunday Night
S wind around 8 kt becoming W after midnight. Partly cloudy. Waves 1 ft or less.
Washington's Birthday
S wind 10 to 12 kt. Partly sunny. Waves 1 ft or less.

Waves omitted due to ice coverage.


*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: 1:24 pm EST Feb 12, 2026
Forecast Valid: 1pm EST Feb 12, 2026-6pm EST Feb 18, 2026
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