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:SSW wind around 17 kt. Mostly sunny. Waves 1 ft or less.

      High: 43 °F

      SSW 17kt
      < 1ft

    • Tonight

      Tonight:WSW wind 8 to 10 kt becoming NE in the evening. Partly cloudy. Waves 1 ft or less.

      Low: 35 °F

      WSW 10kt
      < 1ft

    • Tuesday

      Tuesday:ESE wind around 10 kt becoming NW in the afternoon. Mostly cloudy. Waves 1 ft or less.

      High: 40 °F

      NW 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:N wind 11 to 14 kt becoming ENE after midnight. Rain.   Waves 1 ft or less.

      Low: 35 °F

      ENE 14kt
      < 1ft

    • Wednesday

      Wednesday:ESE wind 15 to 18 kt becoming NW in the afternoon. Rain before 5pm, then rain and snow likely.   Waves 1 ft or less.

      High: 38 °F

      NW 18kt
      < 1ft

    • Wednesday Night

      Wednesday Night:NW wind around 26 kt. Rain and snow likely before 11pm, then a chance of snow between 11pm and 2am.   Waves 1 ft or less.

      Low: 24 °F

      NW 26kt
      < 1ft

    • Thursday

      Thursday:NW wind 14 to 22 kt. Partly sunny. Waves 1 ft or less.

      High: 30 °F

      NW 22kt
      < 1ft

    • Thursday Night

      Thursday Night:E wind 8 to 13 kt becoming SSE 17 to 22 kt after midnight. A chance of snow.   Waves 1 ft or less.

      Low: 27 °F

      ⇑SSE 22kt
      < 1ft

    • Friday

      Friday:SSE wind 30 to 34 kt becoming SW in the afternoon. Rain and snow likely, mainly before 2pm.   Waves 1 ft or less.

      High: 35 °F

      S 34kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:13 am EDT Mar 9, 2026
Forecast Valid: 2pm EDT Mar 9, 2026-6pm EDT Mar 15, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
SSW wind around 17 kt. Mostly sunny. Waves 1 ft or less.
Tonight
WSW wind 8 to 10 kt becoming NE in the evening. Partly cloudy. Waves 1 ft or less.
Tuesday
ESE wind around 10 kt becoming NW in the afternoon. Mostly cloudy. Waves 1 ft or less.
Tuesday Night
N wind 11 to 14 kt becoming ENE after midnight. Rain. Waves 1 ft or less.
Wednesday
ESE wind 15 to 18 kt becoming NW in the afternoon. Rain before 5pm, then rain and snow likely. Waves 1 ft or less.
Wednesday Night
NW wind around 26 kt. Rain and snow likely before 11pm, then a chance of snow between 11pm and 2am. Waves 1 ft or less.
Thursday
NW wind 14 to 22 kt. Partly sunny. Waves 1 ft or less.
Thursday Night
E wind 8 to 13 kt becoming SSE 17 to 22 kt after midnight. A chance of snow. Waves 1 ft or less.
Friday
SSE wind 30 to 34 kt becoming SW in the afternoon. Rain and snow likely, mainly before 2pm. Waves 1 ft or less.

Wave heights are for ice free areas.


*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: 10:13 am EDT Mar 9, 2026
Forecast Valid: 2pm EDT Mar 9, 2026-6pm EDT Mar 15, 2026
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