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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSE wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

      Low: 64 °F

      SSE 6kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Sunny. Waves 1 ft or less.

      High: 86 °F

      ⇑SSW 7kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 5 to 7 kt becoming WSW after midnight. Partly cloudy. Waves 1 ft or less.

      Low: 69 °F

      SSW 7kt
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SW 5 to 8 kt in the morning. Showers likely, then showers and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 82 °F

      ⇑SW 8kt
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Showers and possibly a thunderstorm before 8pm, then a chance of showers.   Waves 1 ft or less.

      Low: 68 °F

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A chance of showers and thunderstorms after 2pm.   Waves 1 ft or less.

      High: 83 °F

      ⇑S 7kt
      < 1ft

    • Friday Night

      Friday Night:SSW wind 5 to 7 kt. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.   Waves 1 ft or less.

      Low: 68 °F

      SSW 7kt
      < 1ft

    • Saturday

      Saturday:WSW wind 7 to 10 kt. Mostly sunny. Waves 1 ft or less.

      High: 86 °F

      WSW 10kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind 5 to 9 kt. A chance of showers.   Waves 1 ft or less.

      Low: 67 °F

      W 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: 4:25 pm EDT Aug 4, 2026
Forecast Valid: 8pm EDT Aug 4, 2026-6pm EDT Aug 11, 2026

View Nearby Observations

Detailed Forecast

Tonight
SSE wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Sunny. Waves 1 ft or less.
Wednesday Night
SSW wind 5 to 7 kt becoming WSW after midnight. Partly cloudy. Waves 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SW 5 to 8 kt in the morning. Showers likely, then showers and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Thursday Night
Variable winds 5 kt or less. Showers and possibly a thunderstorm before 8pm, then a chance of showers. Waves 1 ft or less.
Friday
Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Waves 1 ft or less.
Friday Night
SSW wind 5 to 7 kt. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Waves 1 ft or less.
Saturday
WSW wind 7 to 10 kt. Mostly sunny. Waves 1 ft or less.
Saturday Night
W wind 5 to 9 kt. A chance of showers. 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: 4:25 pm EDT Aug 4, 2026
Forecast Valid: 8pm EDT Aug 4, 2026-6pm EDT Aug 11, 2026
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