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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:NE wind 5 to 8 kt becoming SE in the afternoon. Showers likely, with thunderstorms also possible after 2pm.   Waves 1 ft or less.

      High: 70 °F

      ESE 8kt
      < 1ft

    • Tonight

      Tonight:E wind 5 to 7 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Some of the storms could produce heavy rainfall.  Patchy fog after 1am.  Waves 1 ft or less.

      Low: 66 °F

      E 7kt
      < 1ft

    • Sunday

      Sunday:NNE wind 7 to 11 kt. Showers likely before 1pm.  Patchy fog before 11am.  Waves 1 ft or less.

      High: 70 °F

      NNE 11kt
      < 1ft

    • Sunday Night

      Sunday Night:NNE wind around 13 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 55 °F

      NNE 13kt
      < 1ft

    • Monday

      Monday:NE wind around 13 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

      High: 64 °F

      NE 13kt
      < 1ft

    • Monday Night

      Monday Night:NE wind 12 to 15 kt, with gusts as high as 21 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 52 °F

      NE 15kt
      < 1ft

    • Tuesday

      Tuesday:ENE wind around 16 kt, with gusts as high as 25 kt. Mostly cloudy. Waves 1 ft or less.

      High: 64 °F

      ENE 16kt
      < 1ft

    • Tuesday Night

      Tuesday Night:ENE wind around 17 kt, with gusts as high as 26 kt. A chance of showers.   Waves 1 ft or less.

      Low: 54 °F

      ENE 17kt
      < 1ft

    • Wednesday

      Wednesday:E wind 13 to 17 kt, with gusts as high as 23 kt. Showers likely.   Waves 1 ft or less.

      High: 64 °F

      E 17kt
      < 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 am EDT Sep 19, 2026
Forecast Valid: 6am EDT Sep 19, 2026-6pm EDT Sep 25, 2026

View Nearby Observations

Detailed Forecast

Today
NE wind 5 to 8 kt becoming SE in the afternoon. Showers likely, with thunderstorms also possible after 2pm. Waves 1 ft or less.
Tonight
E wind 5 to 7 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Some of the storms could produce heavy rainfall. Patchy fog after 1am. Waves 1 ft or less.
Sunday
NNE wind 7 to 11 kt. Showers likely before 1pm. Patchy fog before 11am. Waves 1 ft or less.
Sunday Night
NNE wind around 13 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.
Monday
NE wind around 13 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.
Monday Night
NE wind 12 to 15 kt, with gusts as high as 21 kt. Mostly cloudy. Waves 1 ft or less.
Tuesday
ENE wind around 16 kt, with gusts as high as 25 kt. Mostly cloudy. Waves 1 ft or less.
Tuesday Night
ENE wind around 17 kt, with gusts as high as 26 kt. A chance of showers. Waves 1 ft or less.
Wednesday
E wind 13 to 17 kt, with gusts as high as 23 kt. Showers likely. 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 am EDT Sep 19, 2026
Forecast Valid: 6am EDT Sep 19, 2026-6pm EDT Sep 25, 2026
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