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Detroit/Pontiac, MI Local Forecast Office

7NM S Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSW wind 7 to 9 kt. Sunny. Waves 1 ft or less.

      High: 90 °F

      SSW 9kt
      < 1ft

    • Tonight

      Tonight:SSW wind 7 to 9 kt. Mostly clear. Waves 1 ft or less.

      Low: 74 °F

      SSW 9kt
      < 1ft

    • Tuesday

      Tuesday:SW wind around 8 kt. A chance of showers after 2pm.   Waves 1 ft or less.

      High: 89 °F

      SW 8kt
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds less than 5 kt becoming NNE around 6 kt in the evening. A chance of showers and thunderstorms.   Waves 1 ft or less.

      Low: 70 °F

      ⇑NNE 6kt
      < 1ft

    • Wednesday

      Wednesday:NE wind around 7 kt becoming SSE in the afternoon. A chance of showers, then showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 79 °F

      NE 7kt
      < 1ft

    • Wednesday Night

      Wednesday Night:ENE wind around 7 kt. Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am.   Waves 1 ft or less.

      Low: 68 °F

      ENE 7kt
      < 1ft

    • Thursday

      Thursday:SSW wind 6 to 8 kt. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 81 °F

      SSW 8kt
      < 1ft

    • Thursday Night

      Thursday Night:ESE wind 8 to 10 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm.   Waves 1 ft or less.

      Low: 71 °F

      ESE 10kt
      < 1ft

    • Friday

      Friday:SW wind around 9 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.   Waves around 1 ft.

      High: 84 °F

      SW 9kt
      1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:35 am EDT Jun 23, 2025
Forecast Valid: 12pm EDT Jun 23, 2025-6pm EDT Jun 29, 2025

View Nearby Observations

Detailed Forecast

This Afternoon
SSW wind 7 to 9 kt. Sunny. Waves 1 ft or less.
Tonight
SSW wind 7 to 9 kt. Mostly clear. Waves 1 ft or less.
Tuesday
SW wind around 8 kt. A chance of showers after 2pm. Waves 1 ft or less.
Tuesday Night
Variable winds less than 5 kt becoming NNE around 6 kt in the evening. A chance of showers and thunderstorms. Waves 1 ft or less.
Wednesday
NE wind around 7 kt becoming SSE in the afternoon. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Wednesday Night
ENE wind around 7 kt. Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Waves 1 ft or less.
Thursday
SSW wind 6 to 8 kt. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Thursday Night
ESE wind 8 to 10 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Waves 1 ft or less.
Friday
SW wind around 9 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Waves around 1 ft.



*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: 8:35 am EDT Jun 23, 2025
Forecast Valid: 12pm EDT Jun 23, 2025-6pm EDT Jun 29, 2025
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