Hazardous Weather Conditions

For More Weather Information:

Detroit/Pontiac, MI Local Forecast Office

18NM ENE Port Sanilac MI

Marine Point Forecast

[NOTICE]
    • Monday

      Monday:SSW wind 14 to 22 kt becoming W in the afternoon. Showers likely, mainly before 7am.   Waves 3 to 5 ft.

      High: 51 °F

      SSW 22kt
      3-5ft

    • Monday Night

      Monday Night:NNE wind 7 to 12 kt becoming S after midnight. A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am.   Waves 1 ft or less.

      Low: 42 °F

      S 12kt
      < 1ft

    • Tuesday

      Tuesday:SW wind 16 to 18 kt. Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm.   Waves 3 to 4 ft.

      High: 53 °F

      SW 18kt
      3-4ft

    • Tuesday Night

      Tuesday Night:SSW wind around 13 kt. Showers and thunderstorms likely before 2am, then showers between 2am and 5am, then showers and possibly a thunderstorm after 5am.   Waves around 2 ft.

      Low: 42 °F

      SSW 13kt
      2ft

    • Wednesday

      Wednesday:WSW wind 10 to 12 kt. Showers and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm.   Waves 1 to 2 ft.

      High: 48 °F

      WSW 12kt
      1-2ft

    • Wednesday Night

      Wednesday Night:S wind 10 to 13 kt. Showers likely and possibly a thunderstorm, then showers after 8pm.   Waves 1 to 3 ft.

      Low: 43 °F

      S 13kt
      1-3ft

    • Thursday

      Thursday:SSW wind around 17 kt. Showers, with thunderstorms also possible after 2pm.   Waves 3 to 4 ft.

      High: 51 °F

      SSW 17kt
      3-4ft

    • Thursday Night

      Thursday Night:SW wind 13 to 15 kt becoming WNW after midnight. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.   Waves 1 to 2 ft.

      Low: 40 °F

      SW 15kt
      1-2ft

    • Friday

      Friday:NNW wind 8 to 12 kt. Partly sunny. Waves around 1 ft.

      High: 49 °F

      NNW 12kt
      1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:13 am EDT Apr 13, 2026
Forecast Valid: 3am EDT Apr 13, 2026-6pm EDT Apr 19, 2026

View Nearby Observations

Detailed Forecast

Monday
SSW wind 14 to 22 kt becoming W in the afternoon. Showers likely, mainly before 7am. Waves 3 to 5 ft.
Monday Night
NNE wind 7 to 12 kt becoming S after midnight. A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Waves 1 ft or less.
Tuesday
SW wind 16 to 18 kt. Showers and possibly a thunderstorm, mainly before 2pm, then a chance of showers and thunderstorms after 2pm. Waves 3 to 4 ft.
Tuesday Night
SSW wind around 13 kt. Showers and thunderstorms likely before 2am, then showers between 2am and 5am, then showers and possibly a thunderstorm after 5am. Waves around 2 ft.
Wednesday
WSW wind 10 to 12 kt. Showers and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Waves 1 to 2 ft.
Wednesday Night
S wind 10 to 13 kt. Showers likely and possibly a thunderstorm, then showers after 8pm. Waves 1 to 3 ft.
Thursday
SSW wind around 17 kt. Showers, with thunderstorms also possible after 2pm. Waves 3 to 4 ft.
Thursday Night
SW wind 13 to 15 kt becoming WNW after midnight. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Waves 1 to 2 ft.
Friday
NNW wind 8 to 12 kt. Partly 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 43.53°N 82.15°W
Last Update: 3:13 am EDT Apr 13, 2026
Forecast Valid: 3am EDT Apr 13, 2026-6pm EDT Apr 19, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data