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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:WSW wind around 12 kt, with gusts as high as 20 kt. Showers likely, mainly after 5pm.   Waves 1 ft or less.

      High: 73 °F

      WSW 12kt
      < 1ft

    • Tonight

      Tonight:NW wind 7 to 11 kt. A chance of showers, mainly before 7pm.   Waves 1 ft or less.

      Low: 44 °F

      NW 11kt
      < 1ft

    • Friday

      Friday:NNW wind around 6 kt. Sunny. Waves 1 ft or less.

      High: 61 °F

      NNW 6kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

      Low: 44 °F

      Light Wind
      < 1ft

    • Saturday

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

      High: 61 °F

      ⇑SE 7kt
      < 1ft

    • Saturday Night

      Saturday Night:ESE wind around 6 kt. Cloudy. Waves 1 ft or less.

      Low: 50 °F

      ESE 6kt
      < 1ft

    • Sunday

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

      High: 66 °F

      ⇑SSE 6kt
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.

      Low: 52 °F

      Light Wind
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Mostly cloudy. Waves 1 ft or less.

      High: 67 °F

      ⇑S 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: 3:13 pm EDT Oct 29, 2026
Forecast Valid: 3pm EDT Oct 29, 2026-6pm EST Nov 4, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
WSW wind around 12 kt, with gusts as high as 20 kt. Showers likely, mainly after 5pm. Waves 1 ft or less.
Tonight
NW wind 7 to 11 kt. A chance of showers, mainly before 7pm. Waves 1 ft or less.
Friday
NNW wind around 6 kt. Sunny. Waves 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.
Saturday
Variable winds less than 5 kt becoming SE 5 to 7 kt in the morning. Mostly cloudy. Waves 1 ft or less.
Saturday Night
ESE wind around 6 kt. Cloudy. Waves 1 ft or less.
Sunday
Variable winds less than 5 kt becoming SSE around 6 kt in the morning. Mostly cloudy. Waves 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.
Monday
Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Mostly cloudy. 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: 3:13 pm EDT Oct 29, 2026
Forecast Valid: 3pm EDT Oct 29, 2026-6pm EST Nov 4, 2026
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