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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:ESE wind around 6 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 64 °F

      ESE 6kt
      < 1ft

    • Saturday

      Saturday:SSE wind 5 to 9 kt becoming SSW in the afternoon. A slight chance of showers between 9am and 11am.   Waves 1 ft or less.

      High: 82 °F

      S 9kt
      < 1ft

    • Saturday Night

      Saturday Night:SSW wind 5 to 7 kt becoming W after midnight. Partly cloudy. Waves 1 ft or less.

      Low: 68 °F

      SSW 7kt
      < 1ft

    • Sunday

      Sunday:WNW wind 5 to 9 kt. Mostly sunny. Waves 1 ft or less.

      High: 81 °F

      WNW 9kt
      < 1ft

    • Sunday Night

      Sunday Night:N wind 9 to 11 kt. Partly cloudy. Waves 1 ft or less.

      Low: 58 °F

      N 11kt
      < 1ft

    • Monday

      Monday:N wind around 8 kt becoming ENE in the afternoon. Sunny. Waves 1 ft or less.

      High: 73 °F

      N 8kt
      < 1ft

    • Monday Night

      Monday Night:SE wind 7 to 10 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 62 °F

      SE 10kt
      < 1ft

    • Tuesday

      Tuesday:SSW wind around 13 kt, with gusts as high as 19 kt. Partly sunny. Waves 1 ft or less.

      High: 82 °F

      SSW 13kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SW wind 5 to 10 kt. A chance of thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am.   Waves 1 ft or less.

      Low: 67 °F

      SW 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: 4:24 pm EDT Sep 11, 2026
Forecast Valid: 12am EDT Sep 12, 2026-6pm EDT Sep 18, 2026

View Nearby Observations

Detailed Forecast

Overnight
ESE wind around 6 kt. Mostly cloudy. Waves 1 ft or less.
Saturday
SSE wind 5 to 9 kt becoming SSW in the afternoon. A slight chance of showers between 9am and 11am. Waves 1 ft or less.
Saturday Night
SSW wind 5 to 7 kt becoming W after midnight. Partly cloudy. Waves 1 ft or less.
Sunday
WNW wind 5 to 9 kt. Mostly sunny. Waves 1 ft or less.
Sunday Night
N wind 9 to 11 kt. Partly cloudy. Waves 1 ft or less.
Monday
N wind around 8 kt becoming ENE in the afternoon. Sunny. Waves 1 ft or less.
Monday Night
SE wind 7 to 10 kt. Mostly cloudy. Waves 1 ft or less.
Tuesday
SSW wind around 13 kt, with gusts as high as 19 kt. Partly sunny. Waves 1 ft or less.
Tuesday Night
SW wind 5 to 10 kt. A chance of thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. 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 Sep 11, 2026
Forecast Valid: 12am EDT Sep 12, 2026-6pm EDT Sep 18, 2026
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