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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 3am.   Waves 1 ft or less.

      Low: 67 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:NE wind 7 to 9 kt. A chance of showers, mainly before 11am.   Waves 1 ft or less.

      High: 78 °F

      NE 9kt
      < 1ft

    • Saturday Night

      Saturday Night:NNE wind 6 to 9 kt. Partly cloudy. Waves 1 ft or less.

      Low: 61 °F

      NNE 9kt
      < 1ft

    • Sunday

      Sunday:ENE wind 7 to 9 kt. Sunny. Waves 1 ft or less.

      High: 78 °F

      ENE 9kt
      < 1ft

    • Sunday Night

      Sunday Night:ENE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

      Low: 61 °F

      ENE 7kt⇓
      < 1ft

    • Labor Day

      Labor Day:NE wind 5 to 7 kt becoming E in the afternoon. Sunny. Waves 1 ft or less.

      High: 79 °F

      E 7kt
      < 1ft

    • Monday Night

      Monday Night:E wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.

      Low: 62 °F

      E 6kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SSE 5 to 8 kt in the morning. Partly sunny. Waves 1 ft or less.

      High: 81 °F

      ⇑SSE 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSE wind around 9 kt becoming SSW after midnight. Mostly cloudy. Waves 1 ft or less.

      Low: 69 °F

      S 9kt
      < 1ft


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 pm EDT Sep 4, 2026
Forecast Valid: 9pm EDT Sep 4, 2026-6pm EDT Sep 11, 2026

View Nearby Observations

Detailed Forecast

Tonight
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 3am. Waves 1 ft or less.
Saturday
NE wind 7 to 9 kt. A chance of showers, mainly before 11am. Waves 1 ft or less.
Saturday Night
NNE wind 6 to 9 kt. Partly cloudy. Waves 1 ft or less.
Sunday
ENE wind 7 to 9 kt. Sunny. Waves 1 ft or less.
Sunday Night
ENE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.
Labor Day
NE wind 5 to 7 kt becoming E in the afternoon. Sunny. Waves 1 ft or less.
Monday Night
E wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SSE 5 to 8 kt in the morning. Partly sunny. Waves 1 ft or less.
Tuesday Night
SSE wind around 9 kt becoming SSW after midnight. Mostly cloudy. Waves 1 ft 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: 42.19°N 83.15°W
Last Update: 4:24 pm EDT Sep 4, 2026
Forecast Valid: 9pm EDT Sep 4, 2026-6pm EDT Sep 11, 2026
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