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Detroit/Pontiac, MI Local Forecast Office

Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Saturday

      Saturday:WSW wind 18 to 23 km/h becoming WNW in the afternoon. Winds could gust as high as 37 km/h. A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm.   Waves 1 m or less.

      High: 19 °C

      WSW 23km/h
      < 1m

    • Saturday Night

      Saturday Night:NW wind around 13 km/h becoming NNE after midnight. Mostly cloudy. Waves 1 m or less.

      Low: 15 °C

      NW 13km/h
      < 1m

    • Sunday

      Sunday:E wind 14 to 18 km/h. Partly sunny. Waves 1 m or less.

      High: 12 °C

      E 18km/h
      < 1m

    • Sunday Night

      Sunday Night:E wind 16 to 18 km/h. A chance of rain after 2am.   Waves 1 m or less.

      Low: 5 °C

      E 18km/h
      < 1m

    • Monday

      Monday:SE wind 16 to 21 km/h becoming SSW 22 to 27 km/h in the afternoon. Winds could gust as high as 42 km/h. Rain, mainly between 8am and 2pm.   Waves 1 m or less.

      High: 21 °C

      ⇑SSW 27km/h
      < 1m

    • Monday Night

      Monday Night:W wind 21 to 24 km/h, with gusts as high as 39 km/h. A chance of rain before 8pm.   Waves 1 m or less.

      Low: 8 °C

      W 24km/h
      < 1m

    • Tuesday

      Tuesday:W wind around 18 km/h, with gusts as high as 29 km/h. Sunny. Waves 1 m or less.

      High: 18 °C

      W 18km/h
      < 1m

    • Tuesday Night

      Tuesday Night:WNW wind around 10 km/h becoming E after midnight. Partly cloudy. Waves 1 m or less.

      Low: 7 °C

      WNW 10km/h
      < 1m

    • Wednesday

      Wednesday:S wind 10 to 14 km/h. Mostly sunny. Waves 1 m or less.

      High: 21 °C

      S 14km/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 EDT Apr 18, 2025
Forecast Valid: 1am EDT Apr 19, 2025-6pm EDT Apr 25, 2025

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Detailed Forecast

Saturday
WSW wind 18 to 23 km/h becoming WNW in the afternoon. Winds could gust as high as 37 km/h. A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm. Waves 1 m or less.
Saturday Night
NW wind around 13 km/h becoming NNE after midnight. Mostly cloudy. Waves 1 m or less.
Sunday
E wind 14 to 18 km/h. Partly sunny. Waves 1 m or less.
Sunday Night
E wind 16 to 18 km/h. A chance of rain after 2am. Waves 1 m or less.
Monday
SE wind 16 to 21 km/h becoming SSW 22 to 27 km/h in the afternoon. Winds could gust as high as 42 km/h. Rain, mainly between 8am and 2pm. Waves 1 m or less.
Monday Night
W wind 21 to 24 km/h, with gusts as high as 39 km/h. A chance of rain before 8pm. Waves 1 m or less.
Tuesday
W wind around 18 km/h, with gusts as high as 29 km/h. Sunny. Waves 1 m or less.
Tuesday Night
WNW wind around 10 km/h becoming E after midnight. Partly cloudy. Waves 1 m or less.
Wednesday
S wind 10 to 14 km/h. Mostly 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: 42.12°N 83.18°W
Last Update: 10:13 pm EDT Apr 18, 2025
Forecast Valid: 1am EDT Apr 19, 2025-6pm EDT Apr 25, 2025
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