Hazardous Weather Conditions

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Detroit/Pontiac, MI Local Forecast Office

18NM ENE Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:N wind 12 to 14 kt. Mostly sunny. Waves 4 to 5 ft.

      High: 26 °F

      N 14kt
      4-5ft

    • Tonight

      Tonight:E wind 6 to 13 kt becoming SSE after midnight. Clear. Waves 1 to 2 ft.

      Low: 27 °FRising Temperatures

      SSE 13kt
      1-2ft

    • Wednesday

      Wednesday:SSE wind 15 to 18 kt. Increasing clouds. Waves 2 to 3 ft.

      High: 43 °F

      SSE 18kt
      2-3ft

    • Wednesday Night

      Wednesday Night:S wind 21 to 25 kt, with gusts as high as 31 kt. Partly cloudy. Waves 4 to 6 ft. occasionally to 8ft.

      Low: 40 °F

      S 25kt
      4-6ft

    • Thursday

      Thursday:S wind 16 to 23 kt. A chance of rain between 8am and 2pm.   Waves 6 ft subsiding to 3 ft.

      High: 47 °F

      S 23kt
      6ftWaves Subsiding

    • Thursday Night

      Thursday Night:WNW wind 9 to 12 kt becoming NE after midnight. A chance of rain after 2am.   Waves 1 to 2 ft.

      Low: 35 °F

      WNW 12kt
      1-2ft

    • Friday

      Friday:N wind around 9 kt. Rain likely, mainly between 8am and 2pm.   Waves around 1 ft.

      High: 38 °F

      N 9kt
      1ft

    • Friday Night

      Friday Night:N wind 7 to 9 kt. Partly cloudy. Waves around 1 ft.

      Low: 34 °F

      N 9kt
      1ft

    • Saturday

      Saturday:N wind 5 to 7 kt. Sunny. Waves around 1 ft.

      High: 40 °F

      N 7kt
      1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:24 pm EDT Apr 7, 2026
Forecast Valid: 2pm EDT Apr 7, 2026-6pm EDT Apr 13, 2026

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Detailed Forecast

This Afternoon
N wind 12 to 14 kt. Mostly sunny. Waves 4 to 5 ft.
Tonight
E wind 6 to 13 kt becoming SSE after midnight. Clear. Waves 1 to 2 ft.
Wednesday
SSE wind 15 to 18 kt. Increasing clouds. Waves 2 to 3 ft.
Wednesday Night
S wind 21 to 25 kt, with gusts as high as 31 kt. Partly cloudy. Waves 4 to 6 ft. occasionally to 8ft.
Thursday
S wind 16 to 23 kt. A chance of rain between 8am and 2pm. Waves 6 ft subsiding to 3 ft.
Thursday Night
WNW wind 9 to 12 kt becoming NE after midnight. A chance of rain after 2am. Waves 1 to 2 ft.
Friday
N wind around 9 kt. Rain likely, mainly between 8am and 2pm. Waves around 1 ft.
Friday Night
N wind 7 to 9 kt. Partly cloudy. Waves around 1 ft.
Saturday
N wind 5 to 7 kt. Sunny. Waves around 1 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: 2:24 pm EDT Apr 7, 2026
Forecast Valid: 2pm EDT Apr 7, 2026-6pm EDT Apr 13, 2026
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