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Detroit/Pontiac, MI Local Forecast Office

7NM S Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSE wind around 7 kt. A slight chance of showers and thunderstorms after 5am.   Waves 1 ft or less.

      Low: 73 °F

      SSE 7kt
      < 1ft

    • Wednesday

      Wednesday:S wind 5 to 9 kt. A chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am.   Waves 1 ft or less.

      High: 83 °F

      S 9kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSE wind 7 to 9 kt becoming SW after midnight. A chance of showers after 2am.   Waves 1 ft or less.

      Low: 74 °F

      SW 9kt
      < 1ft

    • Thursday

      Thursday:W wind around 12 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 83 °F

      W 12kt
      < 1ft

    • Thursday Night

      Thursday Night:NW wind around 10 kt becoming NNE in the evening. Showers likely and possibly a thunderstorm before 8pm.   Waves 1 ft or less.

      Low: 63 °F

      NW 10kt
      < 1ft

    • Friday

      Friday:NE wind 7 to 9 kt. Mostly sunny. Waves 1 ft or less.

      High: 75 °F

      NE 9kt
      < 1ft

    • Friday Night

      Friday Night:E wind around 6 kt. Partly cloudy. Waves 1 ft or less.

      Low: 64 °F

      E 6kt
      < 1ft

    • Saturday

      Saturday:ESE wind 6 to 8 kt becoming S in the afternoon. A chance of showers, with thunderstorms also possible after 2pm.   Waves 1 ft or less.

      High: 79 °F

      S 8kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind around 8 kt becoming SW after midnight. A chance of showers and thunderstorms.   Waves 1 ft or less.

      Low: 69 °F

      S 8kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:13 pm EDT Jul 15, 2025
Forecast Valid: 7pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025

View Nearby Observations

Detailed Forecast

Tonight
SSE wind around 7 kt. A slight chance of showers and thunderstorms after 5am. Waves 1 ft or less.
Wednesday
S wind 5 to 9 kt. A chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Waves 1 ft or less.
Wednesday Night
SSE wind 7 to 9 kt becoming SW after midnight. A chance of showers after 2am. Waves 1 ft or less.
Thursday
W wind around 12 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Thursday Night
NW wind around 10 kt becoming NNE in the evening. Showers likely and possibly a thunderstorm before 8pm. Waves 1 ft or less.
Friday
NE wind 7 to 9 kt. Mostly sunny. Waves 1 ft or less.
Friday Night
E wind around 6 kt. Partly cloudy. Waves 1 ft or less.
Saturday
ESE wind 6 to 8 kt becoming S in the afternoon. A chance of showers, with thunderstorms also possible after 2pm. Waves 1 ft or less.
Saturday Night
S wind around 8 kt becoming SW after midnight. A chance of showers and thunderstorms. 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: 5:13 pm EDT Jul 15, 2025
Forecast Valid: 7pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
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