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Detroit/Pontiac, MI Local Forecast Office

7NM S Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:NW wind 6 to 10 kt. A chance of snow, mainly before 1pm.   Waves 1 ft or less.

      High: 31 °F

      NW 10kt
      < 1ft

    • Tonight

      Tonight:N wind around 10 kt. Partly cloudy. Waves 1 ft or less.

      Low: 17 °F

      N 10kt
      < 1ft

    • Monday

      Monday:NNE wind 6 to 9 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

      High: 27 °F

      NNE 9kt
      < 1ft

    • Monday Night

      Monday Night:SE wind 6 to 11 kt becoming SSW 13 to 18 kt after midnight. Increasing clouds. Waves 1 to 2 ft.

      Low: 19 °F

      ⇑SSW 18kt
      1-2ft

    • Tuesday

      Tuesday:SW wind 18 to 23 kt, with gusts as high as 29 kt. A chance of snow before 1pm.   Waves 2 to 3 ft.

      High: 36 °F

      SW 23kt
      2-3ft

    • Tuesday Night

      Tuesday Night:SSW wind 17 to 26 kt, with gusts as high as 35 kt. Rain, mainly after 1am.   Waves 2 to 4 ft.

      Low: 32 °F

      SSW 26kt
      2-4ft

    • Wednesday

      Wednesday:SW wind 18 to 26 kt, with gusts as high as 36 kt. Rain likely before 1pm, then a chance of rain and snow.   Waves 4 ft subsiding to 1 ft.

      High: 38 °F

      SW 26kt
      4ftWaves Subsiding

    • Wednesday Night

      Wednesday Night:WNW wind 12 to 18 kt, with gusts as high as 24 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 23 °F

      WNW 18kt
      < 1ft

    • Thursday

      Thursday:W wind around 10 kt. Mostly cloudy. Waves 1 ft or less.

      High: 29 °F

      W 10kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:49 am EST Dec 7, 2025
Forecast Valid: 12pm EST Dec 7, 2025-6pm EST Dec 13, 2025

View Nearby Observations

Detailed Forecast

This Afternoon
NW wind 6 to 10 kt. A chance of snow, mainly before 1pm. Waves 1 ft or less.
Tonight
N wind around 10 kt. Partly cloudy. Waves 1 ft or less.
Monday
NNE wind 6 to 9 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.
Monday Night
SE wind 6 to 11 kt becoming SSW 13 to 18 kt after midnight. Increasing clouds. Waves 1 to 2 ft.
Tuesday
SW wind 18 to 23 kt, with gusts as high as 29 kt. A chance of snow before 1pm. Waves 2 to 3 ft.
Tuesday Night
SSW wind 17 to 26 kt, with gusts as high as 35 kt. Rain, mainly after 1am. Waves 2 to 4 ft.
Wednesday
SW wind 18 to 26 kt, with gusts as high as 36 kt. Rain likely before 1pm, then a chance of rain and snow. Waves 4 ft subsiding to 1 ft.
Wednesday Night
WNW wind 12 to 18 kt, with gusts as high as 24 kt. Mostly cloudy. Waves 1 ft or less.
Thursday
W wind around 10 kt. 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: 42.01°N 83.17°W
Last Update: 9:49 am EST Dec 7, 2025
Forecast Valid: 12pm EST Dec 7, 2025-6pm EST Dec 13, 2025
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