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Detroit/Pontiac, MI Local Forecast Office

Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely after 3pm.   Waves 1 ft or less.

      High: 80 °F

      ⇑S 6kt
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Showers and thunderstorms likely before 8pm.   Waves 1 ft or less.

      Low: 68 °F

      Light Wind
      < 1ft

    • Thursday

      Thursday:N wind around 6 kt becoming SW in the afternoon. Mostly sunny. Waves 1 ft or less.

      High: 86 °F

      NNW 6kt
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

      Low: 69 °F

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Partly sunny. Waves 1 ft or less.

      High: 87 °F

      ⇑S 6kt
      < 1ft

    • Friday Night

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

      Low: 72 °F

      SSE 6kt
      < 1ft

    • Saturday

      Saturday:SSW wind 5 to 10 kt. Showers likely and possibly a thunderstorm after 2pm.   Waves 1 ft or less.

      High: 91 °F

      SSW 10kt
      < 1ft

    • Saturday Night

      Saturday Night:W wind around 7 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am.   Waves 1 ft or less.

      Low: 69 °F

      W 7kt
      < 1ft

    • Sunday

      Sunday:W wind 5 to 7 kt. A chance of showers.   Waves 1 ft or less.

      High: 87 °F

      W 7kt
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:24 am EDT Jul 9, 2025
Forecast Valid: 11am EDT Jul 9, 2025-6pm EDT Jul 15, 2025

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Detailed Forecast

Today
Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely after 3pm. Waves 1 ft or less.
Tonight
Variable winds 5 kt or less. Showers and thunderstorms likely before 8pm. Waves 1 ft or less.
Thursday
N wind around 6 kt becoming SW in the afternoon. Mostly sunny. Waves 1 ft or less.
Thursday Night
Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.
Friday
Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Partly sunny. Waves 1 ft or less.
Friday Night
SSE wind around 6 kt. Partly cloudy. Waves 1 ft or less.
Saturday
SSW wind 5 to 10 kt. Showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.
Saturday Night
W wind around 7 kt. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Waves 1 ft or less.
Sunday
W wind 5 to 7 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: 42.12°N 83.18°W
Last Update: 10:24 am EDT Jul 9, 2025
Forecast Valid: 11am EDT Jul 9, 2025-6pm EDT Jul 15, 2025
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