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Detroit/Pontiac, MI Local Forecast Office

7NM S Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:NNE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Sunny. Waves 1 ft or less.

      High: 61 °F

      NNE 6kt⇓
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

      Low: 47 °F

      Light Wind
      < 1ft

    • Friday

      Friday:SW wind 5 to 9 kt becoming S in the afternoon. Partly sunny. Waves 1 ft or less.

      High: 63 °F

      S 9kt
      < 1ft

    • Friday Night

      Friday Night:S wind 13 to 16 kt. Mostly cloudy. Waves 1 to 2 ft.

      Low: 56 °F

      S 16kt
      1-2ft

    • Saturday

      Saturday:S wind 13 to 16 kt. A chance of showers after 2pm.   Waves 1 to 2 ft.

      High: 73 °F

      S 16kt
      1-2ft

    • Saturday Night

      Saturday Night:SSW wind 14 to 19 kt. Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers after 2am.   Waves around 2 ft.

      Low: 53 °F

      SSW 19kt
      2ft

    • Sunday

      Sunday:SSW wind 12 to 17 kt, with gusts as high as 26 kt. Showers.   Waves 2 to 3 ft.

      High: 62 °F

      SSW 17kt
      2-3ft

    • Sunday Night

      Sunday Night:W wind 13 to 17 kt, with gusts as high as 27 kt. Showers likely.   Waves around 1 ft.

      Low: 46 °F

      W 17kt
      1ft

    • Monday

      Monday:W wind 10 to 12 kt, with gusts as high as 19 kt. Sunny. Waves around 1 ft.

      High: 59 °F

      W 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: 5:13 am EDT Oct 16, 2025
Forecast Valid: 8am EDT Oct 16, 2025-6pm EDT Oct 22, 2025

View Nearby Observations

Detailed Forecast

Today
NNE wind around 6 kt becoming variable and less than 5 kt in the afternoon. Sunny. Waves 1 ft or less.
Tonight
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Friday
SW wind 5 to 9 kt becoming S in the afternoon. Partly sunny. Waves 1 ft or less.
Friday Night
S wind 13 to 16 kt. Mostly cloudy. Waves 1 to 2 ft.
Saturday
S wind 13 to 16 kt. A chance of showers after 2pm. Waves 1 to 2 ft.
Saturday Night
SSW wind 14 to 19 kt. Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers after 2am. Waves around 2 ft.
Sunday
SSW wind 12 to 17 kt, with gusts as high as 26 kt. Showers. Waves 2 to 3 ft.
Sunday Night
W wind 13 to 17 kt, with gusts as high as 27 kt. Showers likely. Waves around 1 ft.
Monday
W wind 10 to 12 kt, with gusts as high as 19 kt. 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.
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ABOUT THIS FORECAST

Point Forecast: 42.01°N 83.17°W
Last Update: 5:13 am EDT Oct 16, 2025
Forecast Valid: 8am EDT Oct 16, 2025-6pm EDT Oct 22, 2025
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