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Detroit/Pontiac, MI Local Forecast Office

4NM S Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:ESE wind 18 to 24 km/h becoming S in the afternoon. Winds could gust as high as 37 km/h. A chance of rain before 2pm, then a chance of rain and thunderstorms between 2pm and 3pm, then rain and possibly a thunderstorm after 3pm.   Waves 1 m or less.

      High: 14 °C

      S 24km/h
      < 1m

    • Tonight

      Tonight:W wind 24 to 26 km/h, with gusts as high as 45 km/h. Rain and possibly a thunderstorm before 10pm, then a slight chance of rain between 10pm and 11pm.   Waves 1 m or less.

      Low: 4 °C

      W 26km/h
      < 1m

    • Sunday

      Sunday:W wind 27 to 34 km/h, with gusts as high as 47 km/h. Mostly cloudy. Waves 1 m or less.

      High: 6 °C

      W 34km/h
      < 1m

    • Sunday Night

      Sunday Night:W wind 19 to 24 km/h decreasing to 13 to 18 km/h after midnight. Winds could gust as high as 34 km/h. Partly cloudy. Waves 1 m or less.

      Low: 2 °C

      W 24km/h⇓
      < 1m

    • Monday

      Monday:W wind 16 to 24 km/h, with gusts as high as 35 km/h. A chance of rain after 2pm.   Waves 1 m or less.

      High: 7 °C

      W 24km/h
      < 1m

    • Monday Night

      Monday Night:NW wind 27 to 29 km/h, with gusts as high as 42 km/h. A chance of rain before 8pm.   Waves 1 m or less.

      Low: -3 °C

      NW 29km/h
      < 1m

    • Tuesday

      Tuesday:NNW wind 19 to 24 km/h becoming N 10 to 15 km/h in the afternoon. Winds could gust as high as 32 km/h. Mostly sunny. Waves 1 m or less.

      High: 2 °C

      NNW 24km/h⇓
      < 1m

    • Tuesday Night

      Tuesday Night:SE wind 13 to 18 km/h. Mostly clear. Waves 1 m or less.

      Low: -1 °C

      SE 18km/h
      < 1m

    • Wednesday

      Wednesday:SSE wind 21 to 26 km/h. Partly sunny. Waves 1 m or less.

      High: 10 °C

      SSE 26km/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: 10:24 am EDT Apr 4, 2026
Forecast Valid: 11am EDT Apr 4, 2026-6pm EDT Apr 10, 2026

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Detailed Forecast

Today
ESE wind 18 to 24 km/h becoming S in the afternoon. Winds could gust as high as 37 km/h. A chance of rain before 2pm, then a chance of rain and thunderstorms between 2pm and 3pm, then rain and possibly a thunderstorm after 3pm. Waves 1 m or less.
Tonight
W wind 24 to 26 km/h, with gusts as high as 45 km/h. Rain and possibly a thunderstorm before 10pm, then a slight chance of rain between 10pm and 11pm. Waves 1 m or less.
Sunday
W wind 27 to 34 km/h, with gusts as high as 47 km/h. Mostly cloudy. Waves 1 m or less.
Sunday Night
W wind 19 to 24 km/h decreasing to 13 to 18 km/h after midnight. Winds could gust as high as 34 km/h. Partly cloudy. Waves 1 m or less.
Monday
W wind 16 to 24 km/h, with gusts as high as 35 km/h. A chance of rain after 2pm. Waves 1 m or less.
Monday Night
NW wind 27 to 29 km/h, with gusts as high as 42 km/h. A chance of rain before 8pm. Waves 1 m or less.
Tuesday
NNW wind 19 to 24 km/h becoming N 10 to 15 km/h in the afternoon. Winds could gust as high as 32 km/h. Mostly sunny. Waves 1 m or less.
Tuesday Night
SE wind 13 to 18 km/h. Mostly clear. Waves 1 m or less.
Wednesday
SSE wind 21 to 26 km/h. Partly sunny. Waves 1 m or less.



*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: 42.06°N 83.16°W
Last Update: 10:24 am EDT Apr 4, 2026
Forecast Valid: 11am EDT Apr 4, 2026-6pm EDT Apr 10, 2026
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