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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:WNW wind 5 to 9 kt becoming variable and less than 5 kt. Mostly cloudy, then gradually becoming mostly clear. Waves 1 ft or less.

      Low: 60 °F

      WNW 9kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

      High: 81 °F

      Light Wind
      < 1ft

    • Tuesday Night

      Tuesday Night:S wind 5 to 7 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 63 °F

      S 7kt
      < 1ft

    • Wednesday

      Wednesday:SSW wind 5 to 11 kt. Mostly sunny. Waves 1 ft or less.

      High: 82 °F

      SSW 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind 7 to 9 kt. Showers likely and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am.   Waves 1 ft or less.

      Low: 66 °F

      SSW 9kt
      < 1ft

    • Thursday

      Thursday:W wind 5 to 7 kt. Mostly sunny. Waves 1 ft or less.

      High: 83 °F

      W 7kt
      < 1ft

    • Thursday Night

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

      Low: 65 °F

      Light Wind
      < 1ft

    • Friday

      Friday:N wind 5 to 7 kt. Sunny. Waves 1 ft or less.

      High: 82 °F

      N 7kt
      < 1ft

    • Friday Night

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

      Low: 63 °F

      NNE 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 24, 2026
Forecast Valid: 6pm EDT Aug 24, 2026-6pm EDT Aug 31, 2026

View Nearby Observations

Detailed Forecast

Tonight
WNW wind 5 to 9 kt becoming variable and less than 5 kt. Mostly cloudy, then gradually becoming mostly clear. Waves 1 ft or less.
Tuesday
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Tuesday Night
S wind 5 to 7 kt. Mostly cloudy. Waves 1 ft or less.
Wednesday
SSW wind 5 to 11 kt. Mostly sunny. Waves 1 ft or less.
Wednesday Night
SSW wind 7 to 9 kt. Showers likely and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Waves 1 ft or less.
Thursday
W wind 5 to 7 kt. Mostly sunny. Waves 1 ft or less.
Thursday Night
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Friday
N wind 5 to 7 kt. Sunny. Waves 1 ft or less.
Friday Night
NNE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly 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: 4:24 pm EDT Aug 24, 2026
Forecast Valid: 6pm EDT Aug 24, 2026-6pm EDT Aug 31, 2026
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