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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:WSW wind 7 to 12 kt, with gusts as high as 20 kt. A chance of showers before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm.   Waves 1 ft or less.

      High: 83 °F

      WSW 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:W wind 6 to 10 kt. A chance of showers and thunderstorms before 7pm.   Waves 1 ft or less.

      Low: 67 °F

      W 10kt
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming WNW 5 to 7 kt in the morning. Mostly cloudy. Waves 1 ft or less.

      High: 78 °F

      ⇑WNW 7kt
      < 1ft

    • Thursday Night

      Thursday Night:NNW wind around 6 kt becoming variable and less than 5 kt in the evening. Cloudy during the early evening, then gradual clearing. Waves 1 ft or less.

      Low: 60 °F

      NNW 6kt⇓
      < 1ft

    • Friday

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

      High: 77 °F

      ⇑SE 7kt
      < 1ft

    • Friday Night

      Friday Night:SE wind around 6 kt. Mostly clear. Waves 1 ft or less.

      Low: 64 °F

      SE 6kt
      < 1ft

    • Saturday

      Saturday:S wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.

      High: 82 °F

      S 10kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind 5 to 7 kt becoming WSW after midnight. Mostly cloudy. Waves 1 ft or less.

      Low: 68 °F

      S 7kt
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming WSW around 6 kt in the morning. Mostly sunny. Waves 1 ft or less.

      High: 81 °F

      ⇑WSW 6kt
      < 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 am EDT Sep 9, 2026
Forecast Valid: 4am EDT Sep 9, 2026-6pm EDT Sep 15, 2026

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Detailed Forecast

Wednesday
WSW wind 7 to 12 kt, with gusts as high as 20 kt. A chance of showers before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Waves 1 ft or less.
Wednesday Night
W wind 6 to 10 kt. A chance of showers and thunderstorms before 7pm. Waves 1 ft or less.
Thursday
Variable winds less than 5 kt becoming WNW 5 to 7 kt in the morning. Mostly cloudy. Waves 1 ft or less.
Thursday Night
NNW wind around 6 kt becoming variable and less than 5 kt in the evening. Cloudy during the early evening, then gradual clearing. Waves 1 ft or less.
Friday
Variable winds less than 5 kt becoming SE 5 to 7 kt in the afternoon. Sunny. Waves 1 ft or less.
Friday Night
SE wind around 6 kt. Mostly clear. Waves 1 ft or less.
Saturday
S wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.
Saturday Night
S wind 5 to 7 kt becoming WSW after midnight. Mostly cloudy. Waves 1 ft or less.
Sunday
Variable winds less than 5 kt becoming WSW around 6 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: 4:24 am EDT Sep 9, 2026
Forecast Valid: 4am EDT Sep 9, 2026-6pm EDT Sep 15, 2026
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