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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:NNE wind around 12 kt, with gusts as high as 19 kt. A chance of showers and thunderstorms.   Waves 1 ft or less.

      High: 76 °F

      NNE 12kt
      < 1ft

    • Tonight

      Tonight:N wind 9 to 13 kt, with gusts as high as 19 kt. A chance of showers and thunderstorms before 7pm.   Waves 1 ft or less.

      Low: 61 °F

      N 13kt
      < 1ft

    • Monday

      Monday:N wind 7 to 9 kt. Sunny. Waves 1 ft or less.

      High: 81 °F

      N 9kt
      < 1ft

    • Monday Night

      Monday Night:ENE wind around 6 kt becoming variable and less than 5 kt in the evening. Clear. Waves 1 ft or less.

      Low: 60 °F

      ENE 6kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.

      High: 82 °F

      ⇑S 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSE wind around 6 kt becoming variable and less than 5 kt in the evening. 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 8 kt in the afternoon. Sunny. Waves 1 ft or less.

      High: 85 °F

      ⇑SSW 8kt
      < 1ft

    • Wednesday Night

      Wednesday Night:S wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.

      Low: 68 °F

      S 7kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SW 5 to 7 kt in the morning. Showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 83 °F

      ⇑SW 7kt
      < 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 Aug 2, 2026
Forecast Valid: 5pm EDT Aug 2, 2026-6pm EDT Aug 9, 2026

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Detailed Forecast

This Afternoon
NNE wind around 12 kt, with gusts as high as 19 kt. A chance of showers and thunderstorms. Waves 1 ft or less.
Tonight
N wind 9 to 13 kt, with gusts as high as 19 kt. A chance of showers and thunderstorms before 7pm. Waves 1 ft or less.
Monday
N wind 7 to 9 kt. Sunny. Waves 1 ft or less.
Monday Night
ENE wind around 6 kt becoming variable and less than 5 kt in the evening. Clear. Waves 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.
Tuesday Night
SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming SSW 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.
Wednesday Night
S wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SW 5 to 7 kt in the morning. Showers likely and possibly a thunderstorm after 2pm. 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 Aug 2, 2026
Forecast Valid: 5pm EDT Aug 2, 2026-6pm EDT Aug 9, 2026
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