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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

    • Saturday

      Saturday:ENE wind 6 to 8 kt becoming SE in the afternoon. Rain before 4pm, then a chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Waves 1 ft or less.

      High: 70 °F

      ESE 8kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind 6 to 8 kt. Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Waves 1 ft or less.

      Low: 65 °F

      E 8kt
      < 1ft

    • Sunday

      Sunday:NNE wind 9 to 12 kt, with gusts as high as 18 kt. Showers likely, mainly before 2pm. Waves 1 ft or less.

      High: 68 °F

      NNE 12kt
      < 1ft

    • Sunday Night

      Sunday Night:NNE wind around 12 kt, with gusts as high as 19 kt. A chance of showers before 8pm. Waves 1 ft or less.

      Low: 60 °F

      NNE 12kt
      < 1ft

    • Monday

      Monday:NE wind around 14 kt, with gusts as high as 21 kt. Mostly cloudy. Waves 1 ft or less.

      High: 65 °F

      NE 14kt
      < 1ft

    • Monday Night

      Monday Night:NE wind 13 to 17 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 55 °F

      NE 17kt
      < 1ft

    • Tuesday

      Tuesday:NE wind around 16 kt, with gusts as high as 23 kt. Mostly cloudy. Waves 1 ft or less.

      High: 64 °F

      NE 16kt
      < 1ft

    • Tuesday Night

      Tuesday Night:NE wind 14 to 16 kt, with gusts as high as 23 kt. A chance of showers. Waves 1 ft or less.

      Low: 53 °F

      NE 16kt
      < 1ft

    • Wednesday

      Wednesday:ENE wind 13 to 15 kt. A chance of showers. Waves 1 ft or less.

      High: 64 °F

      ENE 15kt
      < 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 pm EDT Sep 18, 2026
Forecast Valid: 1am EDT Sep 19, 2026-6pm EDT Sep 25, 2026

View Nearby Observations

Detailed Forecast

Saturday
ENE wind 6 to 8 kt becoming SE in the afternoon. Rain before 4pm, then a chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Waves 1 ft or less.
Saturday Night
E wind 6 to 8 kt. Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Waves 1 ft or less.
Sunday
NNE wind 9 to 12 kt, with gusts as high as 18 kt. Showers likely, mainly before 2pm. Waves 1 ft or less.
Sunday Night
NNE wind around 12 kt, with gusts as high as 19 kt. A chance of showers before 8pm. Waves 1 ft or less.
Monday
NE wind around 14 kt, with gusts as high as 21 kt. Mostly cloudy. Waves 1 ft or less.
Monday Night
NE wind 13 to 17 kt. Mostly cloudy. Waves 1 ft or less.
Tuesday
NE wind around 16 kt, with gusts as high as 23 kt. Mostly cloudy. Waves 1 ft or less.
Tuesday Night
NE wind 14 to 16 kt, with gusts as high as 23 kt. A chance of showers. Waves 1 ft or less.
Wednesday
ENE wind 13 to 15 kt. A chance of showers. 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: 9:49 pm EDT Sep 18, 2026
Forecast Valid: 1am EDT Sep 19, 2026-6pm EDT Sep 25, 2026
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