For More Weather Information:

Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSW wind around 9 kt. A slight chance of showers after 5pm.   Waves 1 ft or less.

      High: 83 °F

      SSW 9kt
      < 1ft

    • Tonight

      Tonight:S wind around 9 kt becoming WSW after midnight. Showers and thunderstorms likely, mainly before 3am.   Waves 1 ft or less.

      Low: 70 °F

      WSW 9kt
      < 1ft

    • Monday

      Monday:W wind around 9 kt. Cloudy through mid morning, then gradual clearing. Waves 1 ft or less.

      High: 86 °F

      W 9kt
      < 1ft

    • Monday Night

      Monday Night:W wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers before midnight, then a chance of showers after 2am.   Waves 1 ft or less.

      Low: 68 °F

      W 6kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. A chance of showers, with thunderstorms also possible after 5pm.   Waves 1 ft or less.

      High: 83 °F

      ⇑SSE 6kt
      < 1ft

    • Tuesday Night

      Tuesday Night:S wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.   Waves 1 ft or less.

      Low: 68 °F

      S 6kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming W 5 to 7 kt in the morning. A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.   Waves 1 ft or less.

      High: 83 °F

      ⇑W 7kt
      < 1ft

    • Wednesday Night

      Wednesday Night:WNW wind around 6 kt becoming variable and less than 5 kt. A chance of thunderstorms before 8pm.   Waves 1 ft or less.

      Low: 66 °F

      WNW 6kt⇓
      < 1ft

    • Thursday

      Thursday:NNW wind 5 to 7 kt. Mostly sunny. Waves 1 ft or less.

      High: 82 °F

      NNW 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: 3:13 pm EDT Aug 9, 2026
Forecast Valid: 4pm EDT Aug 9, 2026-6pm EDT Aug 15, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
SSW wind around 9 kt. A slight chance of showers after 5pm. Waves 1 ft or less.
Tonight
S wind around 9 kt becoming WSW after midnight. Showers and thunderstorms likely, mainly before 3am. Waves 1 ft or less.
Monday
W wind around 9 kt. Cloudy through mid morning, then gradual clearing. Waves 1 ft or less.
Monday Night
W wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers before midnight, then a chance of showers after 2am. Waves 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. A chance of showers, with thunderstorms also possible after 5pm. Waves 1 ft or less.
Tuesday Night
S wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Waves 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming W 5 to 7 kt in the morning. A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Waves 1 ft or less.
Wednesday Night
WNW wind around 6 kt becoming variable and less than 5 kt. A chance of thunderstorms before 8pm. Waves 1 ft or less.
Thursday
NNW wind 5 to 7 kt. Mostly 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 42.19°N 83.15°W
Last Update: 3:13 pm EDT Aug 9, 2026
Forecast Valid: 4pm EDT Aug 9, 2026-6pm EDT Aug 15, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data