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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • Today

      Today:N wind around 6 kt. Widespread smoke, mainly before 10am.  Waves 1 ft or less.

      High: 81 °F

      N 6kt
      < 1ft

    • Tonight

      Tonight:E wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.

      Low: 64 °F

      E 6kt⇓
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Increasing clouds. Waves 1 ft or less.

      High: 82 °F

      ⇑S 10kt
      < 1ft

    • Monday Night

      Monday Night:S wind 8 to 11 kt. Showers likely and possibly a thunderstorm after 2am.   Waves 1 ft or less.

      Low: 70 °F

      S 11kt
      < 1ft

    • Tuesday

      Tuesday:SSW wind around 14 kt becoming W in the afternoon. Winds could gust as high as 21 kt. Showers likely and possibly a thunderstorm 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: 85 °F

      SSW 14kt
      < 1ft

    • Tuesday Night

      Tuesday Night:NW wind around 12 kt, with gusts as high as 18 kt. Showers likely and possibly a thunderstorm before 8pm.   Waves 1 ft or less.

      Low: 63 °F

      NW 12kt
      < 1ft

    • Wednesday

      Wednesday:NNW wind around 12 kt, with gusts as high as 18 kt. Mostly sunny. Waves 1 ft or less.

      High: 76 °F

      NNW 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:N wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

      Low: 58 °F

      N 9kt⇓
      < 1ft

    • Thursday

      Thursday:Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

      High: 79 °F

      Light Wind
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:25 am EDT Jul 19, 2026
Forecast Valid: 8am EDT Jul 19, 2026-6pm EDT Jul 25, 2026

View Nearby Observations

Detailed Forecast

Today
N wind around 6 kt. Widespread smoke, mainly before 10am. Waves 1 ft or less.
Tonight
E wind around 6 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.
Monday
Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Increasing clouds. Waves 1 ft or less.
Monday Night
S wind 8 to 11 kt. Showers likely and possibly a thunderstorm after 2am. Waves 1 ft or less.
Tuesday
SSW wind around 14 kt becoming W in the afternoon. Winds could gust as high as 21 kt. Showers likely and possibly a thunderstorm 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.
Tuesday Night
NW wind around 12 kt, with gusts as high as 18 kt. Showers likely and possibly a thunderstorm before 8pm. Waves 1 ft or less.
Wednesday
NNW wind around 12 kt, with gusts as high as 18 kt. Mostly sunny. Waves 1 ft or less.
Wednesday Night
N wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.
Thursday
Variable winds 5 kt or less. Sunny. 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: 4:25 am EDT Jul 19, 2026
Forecast Valid: 8am EDT Jul 19, 2026-6pm EDT Jul 25, 2026
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