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Detroit/Pontiac, MI Local Forecast Office

4NM S Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NNE wind 9 to 11 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 66 °F

      NNE 11kt
      < 1ft

    • Thursday

      Thursday:NNE wind 9 to 11 kt. Mostly cloudy, then gradually becoming sunny. Waves 1 ft or less.

      High: 74 °F

      NNE 11kt
      < 1ft

    • Thursday Night

      Thursday Night:NE wind 5 to 7 kt. Mostly clear. Waves 1 ft or less.

      Low: 65 °F

      NE 7kt
      < 1ft

    • Friday

      Friday:NNE wind around 6 kt becoming ESE in the afternoon. Sunny. Waves 1 ft or less.

      High: 76 °F

      ESE 6kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

      Low: 66 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:WSW wind 5 to 9 kt. Partly sunny. Waves 1 ft or less.

      High: 78 °F

      WSW 9kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind 6 to 8 kt. Partly cloudy. Waves 1 ft or less.

      Low: 64 °F

      W 8kt
      < 1ft

    • Sunday

      Sunday:W wind 6 to 10 kt. Sunny. Waves 1 ft or less.

      High: 72 °F

      W 10kt
      < 1ft

    • Sunday Night

      Sunday Night:WNW wind around 9 kt. Mostly clear. Waves 1 ft or less.

      Low: 59 °F

      WNW 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: 5:13 pm EDT Aug 20, 2025
Forecast Valid: 6pm EDT Aug 20, 2025-6pm EDT Aug 27, 2025

View Nearby Observations

Detailed Forecast

Tonight
NNE wind 9 to 11 kt. Mostly cloudy. Waves 1 ft or less.
Thursday
NNE wind 9 to 11 kt. Mostly cloudy, then gradually becoming sunny. Waves 1 ft or less.
Thursday Night
NE wind 5 to 7 kt. Mostly clear. Waves 1 ft or less.
Friday
NNE wind around 6 kt becoming ESE in the afternoon. Sunny. Waves 1 ft or less.
Friday Night
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Saturday
WSW wind 5 to 9 kt. Partly sunny. Waves 1 ft or less.
Saturday Night
W wind 6 to 8 kt. Partly cloudy. Waves 1 ft or less.
Sunday
W wind 6 to 10 kt. Sunny. Waves 1 ft or less.
Sunday Night
WNW wind around 9 kt. Mostly clear. 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: 42.08°N 83.16°W
Last Update: 5:13 pm EDT Aug 20, 2025
Forecast Valid: 6pm EDT Aug 20, 2025-6pm EDT Aug 27, 2025
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