Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

18NM ENE Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:NW wind 18 to 24 kt. Mostly cloudy. Waves 6 to 8 ft. occasionally to 10ft.

      High: 42 °F

      NW 24kt
      6-8ft

    • Tonight

      Tonight:NW wind 13 to 17 kt. Mostly cloudy. Waves 3 to 5 ft.

      Low: 35 °F

      NW 17kt
      3-5ft

    • Tuesday

      Tuesday:WNW wind 5 to 10 kt becoming N in the afternoon. Mostly cloudy. Waves 1 to 2 ft.

      High: 41 °F

      WNW 10kt
      1-2ft

    • Tuesday Night

      Tuesday Night:NNE wind around 7 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 40 °F

      NNE 7kt
      < 1ft

    • Wednesday

      Wednesday:NE wind 5 to 8 kt becoming ESE in the afternoon. Mostly sunny. Waves 1 ft or less.

      High: 42 °F

      NE 8kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSE wind around 7 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 41 °F

      SSE 7kt
      < 1ft

    • Thursday

      Thursday:SSE wind 8 to 12 kt. Partly sunny. Waves 1 ft or less.

      High: 48 °F

      SSE 12kt
      < 1ft

    • Thursday Night

      Thursday Night:S wind around 16 kt becoming SW after midnight. Rain.   Waves 2 to 3 ft.

      Low: 45 °F

      SSW 16kt
      2-3ft

    • Friday

      Friday:W wind around 18 kt becoming NNW in the afternoon. A chance of rain.   Waves 3 to 4 ft.

      High: 48 °F

      WNW 18kt
      3-4ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:13 am EST Nov 17, 2025
Forecast Valid: 9am EST Nov 17, 2025-6pm EST Nov 23, 2025

View Nearby Observations

Detailed Forecast

Today
NW wind 18 to 24 kt. Mostly cloudy. Waves 6 to 8 ft. occasionally to 10ft.
Tonight
NW wind 13 to 17 kt. Mostly cloudy. Waves 3 to 5 ft.
Tuesday
WNW wind 5 to 10 kt becoming N in the afternoon. Mostly cloudy. Waves 1 to 2 ft.
Tuesday Night
NNE wind around 7 kt. Mostly cloudy. Waves 1 ft or less.
Wednesday
NE wind 5 to 8 kt becoming ESE in the afternoon. Mostly sunny. Waves 1 ft or less.
Wednesday Night
SSE wind around 7 kt. Mostly cloudy. Waves 1 ft or less.
Thursday
SSE wind 8 to 12 kt. Partly sunny. Waves 1 ft or less.
Thursday Night
S wind around 16 kt becoming SW after midnight. Rain. Waves 2 to 3 ft.
Friday
W wind around 18 kt becoming NNW in the afternoon. A chance of rain. Waves 3 to 4 ft.



*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: 4:13 am EST Nov 17, 2025
Forecast Valid: 9am EST Nov 17, 2025-6pm EST Nov 23, 2025
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