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Detroit/Pontiac, MI Local Forecast Office

4NM E Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:N wind 11 to 16 km/h becoming E after midnight. Mostly cloudy. Waves 1 m or less.

      Low: -6 °C

      E 16km/h
      < 1m

    • Wednesday

      Wednesday:E wind 21 to 26 km/h increasing to 27 to 32 km/h in the afternoon. Winds could gust as high as 40 km/h. Snow after 1pm.   Waves 1 m or less.

      High: -2 °C

      ⇑E 32km/h
      < 1m

    • Wednesday Night

      Wednesday Night:E wind 30 to 35 km/h becoming NE 21 to 26 km/h after midnight. Winds could gust as high as 42 km/h. Snow. The snow could be heavy at times.   Waves 1 m or less.

      Low: -4 °C

      E 35km/h⇓
      < 1m

    • Thursday

      Thursday:NNW wind 29 to 34 km/h becoming W in the afternoon. Mostly cloudy. Waves 1 m or less.

      High: -1 °C

      NW 34km/h
      < 1m

    • Thursday Night

      Thursday Night:W wind 23 to 27 km/h, with gusts as high as 35 km/h. Partly cloudy. Waves 1 m or less.

      Low: -12 °C

      W 27km/h
      < 1m

    • Friday

      Friday:W wind 18 to 23 km/h becoming SSW in the afternoon. Increasing clouds. Waves 1 m or less.

      High: -4 °C

      SSW 23km/h
      < 1m

    • Friday Night

      Friday Night:SSE wind around 23 km/h. Snow, mainly after 1am.   Waves 1 m or less.

      Low: -7 °C

      SSE 23km/h
      < 1m

    • Saturday

      Saturday:SSE wind 14 to 21 km/h becoming N in the afternoon. Snow.   Waves 1 m or less.

      High: 0 °C

      SSE 21km/h
      < 1m

    • Saturday Night

      Saturday Night:N wind 23 to 28 km/h increasing to 30 to 35 km/h after midnight. A chance of snow.   Waves 1 m or less.

      Low: -7 °C

      ⇑N 35km/h
      < 1m


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 pm EST Feb 11, 2025
Forecast Valid: 10pm EST Feb 11, 2025-6pm EST Feb 18, 2025

View Nearby Observations

Detailed Forecast

Tonight
N wind 11 to 16 km/h becoming E after midnight. Mostly cloudy. Waves 1 m or less.
Wednesday
E wind 21 to 26 km/h increasing to 27 to 32 km/h in the afternoon. Winds could gust as high as 40 km/h. Snow after 1pm. Waves 1 m or less.
Wednesday Night
E wind 30 to 35 km/h becoming NE 21 to 26 km/h after midnight. Winds could gust as high as 42 km/h. Snow. The snow could be heavy at times. Waves 1 m or less.
Thursday
NNW wind 29 to 34 km/h becoming W in the afternoon. Mostly cloudy. Waves 1 m or less.
Thursday Night
W wind 23 to 27 km/h, with gusts as high as 35 km/h. Partly cloudy. Waves 1 m or less.
Friday
W wind 18 to 23 km/h becoming SSW in the afternoon. Increasing clouds. Waves 1 m or less.
Friday Night
SSE wind around 23 km/h. Snow, mainly after 1am. Waves 1 m or less.
Saturday
SSE wind 14 to 21 km/h becoming N in the afternoon. Snow. Waves 1 m or less.
Saturday Night
N wind 23 to 28 km/h increasing to 30 to 35 km/h after midnight. A chance of snow. Waves 1 m or less.

Waves omitted due to ice coverage.

See Lake Huron Open Lake Forecast for days 3 through 5.


*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: 43.43°N 82.46°W
Last Update: 10:13 pm EST Feb 11, 2025
Forecast Valid: 10pm EST Feb 11, 2025-6pm EST Feb 18, 2025
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