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Detroit/Pontiac, MI Local Forecast Office

6NM NNW Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • Friday

      Friday:NNE wind 13 to 15 kt. Increasing clouds. Waves 2 to 3 ft.

      High: 64 °F

      NNE 15kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday Night

      Friday Night:NNE wind 11 to 15 kt becoming E after midnight. Mostly cloudy. Waves 2 to 3 ft.

      Low: 58 °F

      NNE 15kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Saturday

      Saturday:SE wind around 11 kt. A chance of showers before 3pm.   Waves 1 to 2 ft.

      High: 65 °F

      SE 11kt
      1-2ft

    • Saturday Night

      Saturday Night:ESE wind 10 to 12 kt. A chance of showers after 2am.   Waves 1 to 2 ft.

      Low: 58 °F

      ESE 12kt
      1-2ft

    • Sunday

      Sunday:NE wind 12 to 16 kt, with gusts as high as 23 kt. A chance of showers before 8am.   Waves 1 to 2 ft.

      High: 62 °F

      NE 16kt
      1-2ft

    • Sunday Night

      Sunday Night:NE wind 20 to 22 kt. Mostly cloudy. Waves 4 to 5 ft.

      Low: 55 °F

      NE 22kt
      4-5ft

    • Monday

      Monday:ENE wind 16 to 19 kt. Mostly cloudy. Waves 3 to 5 ft.

      High: 60 °F

      ENE 19kt
      3-5ft

    • Monday Night

      Monday Night:ENE wind 21 to 23 kt. Mostly cloudy. Waves around 5 ft.

      Low: 53 °F

      ENE 23kt
      5ft

    • Tuesday

      Tuesday:ENE wind around 19 kt, with gusts as high as 25 kt. Mostly cloudy. Waves around 4 ft.

      High: 61 °F

      ENE 19kt
      4ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:24 am EDT Sep 18, 2026
Forecast Valid: 4am EDT Sep 18, 2026-6pm EDT Sep 24, 2026

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Detailed Forecast

Friday
NNE wind 13 to 15 kt. Increasing clouds. Waves 2 to 3 ft.
Friday Night
NNE wind 11 to 15 kt becoming E after midnight. Mostly cloudy. Waves 2 to 3 ft.
Saturday
SE wind around 11 kt. A chance of showers before 3pm. Waves 1 to 2 ft.
Saturday Night
ESE wind 10 to 12 kt. A chance of showers after 2am. Waves 1 to 2 ft.
Sunday
NE wind 12 to 16 kt, with gusts as high as 23 kt. A chance of showers before 8am. Waves 1 to 2 ft.
Sunday Night
NE wind 20 to 22 kt. Mostly cloudy. Waves 4 to 5 ft.
Monday
ENE wind 16 to 19 kt. Mostly cloudy. Waves 3 to 5 ft.
Monday Night
ENE wind 21 to 23 kt. Mostly cloudy. Waves around 5 ft.
Tuesday
ENE wind around 19 kt, with gusts as high as 25 kt. Mostly cloudy. Waves around 4 ft.

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: 43.54°N 82.57°W
Last Update: 4:24 am EDT Sep 18, 2026
Forecast Valid: 4am EDT Sep 18, 2026-6pm EDT Sep 24, 2026
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