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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Saturday

      Saturday:SW wind 6 to 9 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 79 °F

      SW 9kt
      < 1ft

    • Saturday Night

      Saturday Night:NW wind around 10 kt. Showers and thunderstorms likely, mainly before 8pm.   Waves 1 ft or less.

      Low: 60 °F

      NW 10kt
      < 1ft

    • Sunday

      Sunday:WNW wind 10 to 13 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 ft or less.

      High: 76 °F

      WNW 13kt
      < 1ft

    • Sunday Night

      Sunday Night:WNW wind around 10 kt. Partly cloudy. Waves 1 ft or less.

      Low: 57 °F

      WNW 10kt
      < 1ft

    • Monday

      Monday:WNW wind 9 to 11 kt. Sunny. Waves 1 ft or less.

      High: 77 °F

      WNW 11kt
      < 1ft

    • Monday Night

      Monday Night:NW wind 5 to 7 kt. Mostly clear. Waves 1 ft or less.

      Low: 58 °F

      NW 7kt
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

      High: 79 °F

      Light Wind
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Waves 1 ft or less.

      Low: 62 °F

      SSW 6kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SSW 5 to 10 kt in the morning. Mostly sunny. Waves 1 ft or less.

      High: 81 °F

      ⇑SSW 10kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:49 am EDT Aug 22, 2026
Forecast Valid: 3am EDT Aug 22, 2026-6pm EDT Aug 28, 2026

View Nearby Observations

Detailed Forecast

Saturday
SW wind 6 to 9 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Saturday Night
NW wind around 10 kt. Showers and thunderstorms likely, mainly before 8pm. Waves 1 ft or less.
Sunday
WNW wind 10 to 13 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 ft or less.
Sunday Night
WNW wind around 10 kt. Partly cloudy. Waves 1 ft or less.
Monday
WNW wind 9 to 11 kt. Sunny. Waves 1 ft or less.
Monday Night
NW wind 5 to 7 kt. Mostly clear. Waves 1 ft or less.
Tuesday
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Tuesday Night
SSW wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Waves 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming SSW 5 to 10 kt in the morning. Mostly sunny. 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: 3:49 am EDT Aug 22, 2026
Forecast Valid: 3am EDT Aug 22, 2026-6pm EDT Aug 28, 2026
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