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Detroit/Pontiac, MI Local Forecast Office

5NM NNW Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:NNW wind around 17 kt. Scattered showers.   Waves 1 ft or less.

      High: 42 °F

      NNW 17kt
      < 1ft

    • Tonight

      Tonight:NW wind 14 to 16 kt, with gusts as high as 22 kt. Showers, mainly before 2am.   Waves 1 ft or less.

      Low: 38 °F

      NW 16kt
      < 1ft

    • Saturday

      Saturday:NW wind around 17 kt, with gusts as high as 24 kt. Scattered showers before noon.   Waves 1 ft or less.

      High: 44 °F

      NW 17kt
      < 1ft

    • Saturday Night

      Saturday Night:NW wind 12 to 16 kt. Cloudy. Waves 1 ft or less.

      Low: 40 °F

      NW 16kt
      < 1ft

    • Sunday

      Sunday:NW wind 10 to 12 kt. Cloudy. Waves 1 ft or less.

      High: 43 °F

      NW 12kt
      < 1ft

    • Sunday Night

      Sunday Night:W wind 5 to 7 kt. Partly cloudy. Waves 1 ft or less.

      Low: 35 °F

      W 7kt
      < 1ft

    • Monday

      Monday:WSW wind around 8 kt. Sunny. Waves 1 ft or less.

      High: 48 °F

      WSW 8kt
      < 1ft

    • Monday Night

      Monday Night:SW wind 6 to 9 kt. Mostly clear. Waves 1 ft or less.

      Low: 34 °F

      SW 9kt
      < 1ft

    • Tuesday

      Tuesday:WSW wind 8 to 10 kt. Sunny. Waves 1 ft or less.

      High: 51 °F

      WSW 10kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:35 pm EST Nov 13, 2026
Forecast Valid: 5pm EST Nov 13, 2026-6pm EST Nov 20, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
NNW wind around 17 kt. Scattered showers. Waves 1 ft or less.
Tonight
NW wind 14 to 16 kt, with gusts as high as 22 kt. Showers, mainly before 2am. Waves 1 ft or less.
Saturday
NW wind around 17 kt, with gusts as high as 24 kt. Scattered showers before noon. Waves 1 ft or less.
Saturday Night
NW wind 12 to 16 kt. Cloudy. Waves 1 ft or less.
Sunday
NW wind 10 to 12 kt. Cloudy. Waves 1 ft or less.
Sunday Night
W wind 5 to 7 kt. Partly cloudy. Waves 1 ft or less.
Monday
WSW wind around 8 kt. Sunny. Waves 1 ft or less.
Monday Night
SW wind 6 to 9 kt. Mostly clear. Waves 1 ft or less.
Tuesday
WSW wind 8 to 10 kt. Sunny. Waves 1 ft or less.

See Lake Huron Open Lake Forecast for days 3 through 5.


*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: 43.52°N 82.57°W
Last Update: 3:35 pm EST Nov 13, 2026
Forecast Valid: 5pm EST Nov 13, 2026-6pm EST Nov 20, 2026
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