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Detroit/Pontiac, MI Local Forecast Office

18NM ENE Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:ENE wind 8 to 13 kt. Rain likely, mainly after 5pm.  Areas of fog before 10am.  Waves 1 ft or less.

      High: 36 °F

      ENE 13kt
      < 1ft

    • Thursday Night

      Thursday Night:ENE wind 6 to 11 kt becoming ESE after midnight. Rain likely, mainly before 8pm.   Waves 1 ft or less.

      Low: 33 °F

      ENE 11kt
      < 1ft

    • Friday

      Friday:SSE wind 7 to 12 kt. Mostly cloudy. Waves 1 ft or less.

      High: 44 °F

      SSE 12kt
      < 1ft

    • Friday Night

      Friday Night:S wind 15 to 21 kt. Rain likely and possibly a thunderstorm.   Waves 1 ft or less.

      Low: 40 °F

      S 21kt
      < 1ft

    • Saturday

      Saturday:S wind 19 to 22 kt becoming WSW in the afternoon. Rain, mainly before 1pm.   Waves 1 ft or less.

      High: 49 °F

      S 22kt
      < 1ft

    • Saturday Night

      Saturday Night:NW wind 10 to 16 kt. Partly cloudy. Waves 1 ft or less.

      Low: 31 °F

      NW 16kt
      < 1ft

    • Sunday

      Sunday:SSW wind 13 to 19 kt. Sunny. Waves 1 ft or less.

      High: 42 °F

      SSW 19kt
      < 1ft

    • Sunday Night

      Sunday Night:SSW wind 18 to 21 kt. Partly cloudy. Waves 1 ft or less.

      Low: 38 °F

      SSW 21kt
      < 1ft

    • Monday

      Monday:SSW wind 17 to 21 kt. Sunny. Waves 1 ft or less.

      High: 46 °F

      SSW 21kt
      < 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 am EST Mar 5, 2026
Forecast Valid: 3am EST Mar 5, 2026-6pm EDT Mar 11, 2026

View Nearby Observations

Detailed Forecast

Thursday
ENE wind 8 to 13 kt. Rain likely, mainly after 5pm. Areas of fog before 10am. Waves 1 ft or less.
Thursday Night
ENE wind 6 to 11 kt becoming ESE after midnight. Rain likely, mainly before 8pm. Waves 1 ft or less.
Friday
SSE wind 7 to 12 kt. Mostly cloudy. Waves 1 ft or less.
Friday Night
S wind 15 to 21 kt. Rain likely and possibly a thunderstorm. Waves 1 ft or less.
Saturday
S wind 19 to 22 kt becoming WSW in the afternoon. Rain, mainly before 1pm. Waves 1 ft or less.
Saturday Night
NW wind 10 to 16 kt. Partly cloudy. Waves 1 ft or less.
Sunday
SSW wind 13 to 19 kt. Sunny. Waves 1 ft or less.
Sunday Night
SSW wind 18 to 21 kt. Partly cloudy. Waves 1 ft or less.
Monday
SSW wind 17 to 21 kt. Sunny. Waves 1 ft or less.

*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 am EST Mar 5, 2026
Forecast Valid: 3am EST Mar 5, 2026-6pm EDT Mar 11, 2026
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