Hazardous Weather Conditions

For More Weather Information:

Detroit/Pontiac, MI Local Forecast Office

18NM ENE Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSE wind 14 to 17 kt. Mostly sunny. Waves 2 to 3 ft.

      High: 42 °F

      SSE 17kt
      2-3ft

    • Tonight

      Tonight:S wind 21 to 23 kt. Partly cloudy. Waves 4 to 6 ft. occasionally to 8ft.

      Low: 41 °FRising Temperatures

      S 23kt
      4-6ft

    • Thursday

      Thursday:S wind 16 to 23 kt. Rain likely before 2pm.   Waves 4 to 6 ft. occasionally to 8ft.

      High: 45 °F

      S 23kt
      4-6ft

    • Thursday Night

      Thursday Night:WNW wind 8 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 6 to 8 kt. Rain likely, mainly between 8am and 2pm.   Waves around 1 ft.

      High: 37 °F

      N 8kt
      1ft

    • Friday Night

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

      Low: 34 °F

      N 9kt
      < 1ft

    • Saturday

      Saturday:NNW wind around 6 kt becoming NNE in the afternoon. Sunny. Waves 1 ft or less.

      High: 40 °F

      NNW 6kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind 6 to 11 kt becoming SE after midnight. Mostly clear. Waves 1 ft or less.

      Low: 37 °F

      SE 11kt
      < 1ft

    • Sunday

      Sunday:SSE wind around 18 kt. A chance of rain.   Waves around 3 ft.

      High: 50 °F

      SSE 18kt
      3ft


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 8, 2026
Forecast Valid: 8am EDT Apr 8, 2026-6pm EDT Apr 14, 2026

View Nearby Observations

Detailed Forecast

Today
SSE wind 14 to 17 kt. Mostly sunny. Waves 2 to 3 ft.
Tonight
S wind 21 to 23 kt. Partly cloudy. Waves 4 to 6 ft. occasionally to 8ft.
Thursday
S wind 16 to 23 kt. Rain likely before 2pm. Waves 4 to 6 ft. occasionally to 8ft.
Thursday Night
WNW wind 8 to 12 kt becoming NE after midnight. A chance of rain after 2am. Waves 1 to 2 ft.
Friday
N wind 6 to 8 kt. Rain likely, mainly between 8am and 2pm. Waves around 1 ft.
Friday Night
N wind 7 to 9 kt. Partly cloudy. Waves 1 ft or less.
Saturday
NNW wind around 6 kt becoming NNE in the afternoon. Sunny. Waves 1 ft or less.
Saturday Night
E wind 6 to 11 kt becoming SE after midnight. Mostly clear. Waves 1 ft or less.
Sunday
SSE wind around 18 kt. A chance of rain. Waves around 3 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 43.53°N 82.15°W
Last Update: 4:24 am EDT Apr 8, 2026
Forecast Valid: 8am EDT Apr 8, 2026-6pm EDT Apr 14, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data