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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 around 17 kt. Partly sunny. Waves 3 to 4 ft.

      High: 32 °F

      N 17kt
      3-4ft

    • Tonight

      Tonight:NNE wind 13 to 18 kt becoming E after midnight. Mostly cloudy. Waves 2 to 4 ft.

      Low: 34 °FRising Temperatures

      NNE 18kt
      2-4ft

    • Thursday

      Thursday:E wind around 16 kt. Rain, mainly before 2pm. Waves 2 to 3 ft.

      High: 44 °F

      E 16kt
      2-3ft

    • Thursday Night

      Thursday Night:S wind 21 to 23 kt. A chance of rain before 8pm, then rain and possibly a thunderstorm between 8pm and 2am, then rain likely after 2am. Waves 5 to 7 ft. occasionally to 9ft.

      Low: 43 °F

      S 23kt
      5-7ft

    • Friday

      Friday:SSW wind 16 to 21 kt becoming W in the afternoon. Rain likely before 8am. Waves 5 ft subsiding to 2 ft.

      High: 49 °F

      SSW 21kt
      5ftWaves Subsiding

    • Friday Night

      Friday Night:N wind around 13 kt. A chance of rain after 2am. Waves around 2 ft.

      Low: 39 °F

      N 13kt
      2ft

    • Saturday

      Saturday:S wind 15 to 19 kt. Rain, mainly after 8am. Waves 3 to 4 ft.

      High: 51 °F

      S 19kt
      3-4ft

    • Saturday Night

      Saturday Night:WSW wind 19 to 22 kt. Rain. Waves 4 to 5 ft.

      Low: 36 °F

      WSW 22kt
      4-5ft

    • Sunday

      Sunday:W wind around 24 kt. A chance of rain. Waves around 6 ft.

      High: 38 °F

      W 24kt
      6ft


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 Apr 1, 2026
Forecast Valid: 1pm EDT Apr 1, 2026-6pm EDT Apr 7, 2026

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Detailed Forecast

This Afternoon
N wind around 17 kt. Partly sunny. Waves 3 to 4 ft.
Tonight
NNE wind 13 to 18 kt becoming E after midnight. Mostly cloudy. Waves 2 to 4 ft.
Thursday
E wind around 16 kt. Rain, mainly before 2pm. Waves 2 to 3 ft.
Thursday Night
S wind 21 to 23 kt. A chance of rain before 8pm, then rain and possibly a thunderstorm between 8pm and 2am, then rain likely after 2am. Waves 5 to 7 ft. occasionally to 9ft.
Friday
SSW wind 16 to 21 kt becoming W in the afternoon. Rain likely before 8am. Waves 5 ft subsiding to 2 ft.
Friday Night
N wind around 13 kt. A chance of rain after 2am. Waves around 2 ft.
Saturday
S wind 15 to 19 kt. Rain, mainly after 8am. Waves 3 to 4 ft.
Saturday Night
WSW wind 19 to 22 kt. Rain. Waves 4 to 5 ft.
Sunday
W wind around 24 kt. A chance of rain. Waves around 6 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: 4:24 am EDT Apr 1, 2026
Forecast Valid: 1pm EDT Apr 1, 2026-6pm EDT Apr 7, 2026
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