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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:W wind around 14 kt, with gusts as high as 22 kt. A chance of showers and thunderstorms.   Waves 1 ft or less.

      High: 85 °F

      W 14kt
      < 1ft

    • Tonight

      Tonight:NNW wind 12 to 14 kt, with gusts as high as 21 kt. A chance of showers and thunderstorms, mainly before 8pm.   Waves 1 ft or less.

      Low: 58 °F

      NNW 14kt
      < 1ft

    • Wednesday

      Wednesday:NNW wind around 10 kt. Mostly sunny. Waves 1 ft or less.

      High: 74 °F

      NNW 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:NW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly cloudy, then gradually becoming clear. Waves 1 ft or less.

      Low: 57 °F

      NW 7kt⇓
      < 1ft

    • Thursday

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

      High: 78 °F

      Light Wind
      < 1ft

    • Thursday Night

      Thursday Night:SSE wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

      Low: 60 °F

      SSE 7kt⇓
      < 1ft

    • Friday

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

      High: 79 °F

      ⇑SE 7kt
      < 1ft

    • Friday Night

      Friday Night:SE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

      Low: 63 °F

      SE 6kt⇓
      < 1ft

    • Saturday

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

      High: 84 °F

      ⇑S 8kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:24 pm EDT Jul 21, 2026
Forecast Valid: 2pm EDT Jul 21, 2026-6pm EDT Jul 27, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
W wind around 14 kt, with gusts as high as 22 kt. A chance of showers and thunderstorms. Waves 1 ft or less.
Tonight
NNW wind 12 to 14 kt, with gusts as high as 21 kt. A chance of showers and thunderstorms, mainly before 8pm. Waves 1 ft or less.
Wednesday
NNW wind around 10 kt. Mostly sunny. Waves 1 ft or less.
Wednesday Night
NW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly cloudy, then gradually becoming clear. Waves 1 ft or less.
Thursday
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Thursday Night
SSE wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.
Friday
Variable winds less than 5 kt becoming SE 5 to 7 kt in the afternoon. Mostly sunny. Waves 1 ft or less.
Friday Night
SE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.
Saturday
Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. 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: 2:24 pm EDT Jul 21, 2026
Forecast Valid: 2pm EDT Jul 21, 2026-6pm EDT Jul 27, 2026
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