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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 88 °F
SW 14kt
< 1ft
Tonight
Low: 66 °F
SW 11kt
< 1ft
Sunday
High: 71 °F
NW 11kt
< 1ft
Sunday Night
Low: 54 °F
NW 12kt
< 1ft
Monday
High: 75 °F
WSW 11kt
< 1ft
Monday Night
Low: 57 °F
W 10kt
< 1ft
Tuesday
High: 77 °F
SW 12kt
< 1ft
Tuesday Night
Low: 58 °F
SW 10kt
< 1ft
Wednesday
High: 78 °F
SW 10kt
< 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 pm EDT Jun 13, 2026
Forecast Valid: 5pm EDT Jun 13, 2026-6pm EDT Jun 20, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SW wind around 14 kt, with gusts as high as 20 kt. Sunny. Waves 1 ft or less.

Tonight

SW wind 8 to 11 kt. A chance of showers, mainly after 5am. Waves 1 ft or less.

Sunday

WSW wind 6 to 11 kt becoming NNW in the afternoon. Showers and thunderstorms, mainly before 1pm. Waves 1 ft or less.

Sunday Night

NW wind 5 to 12 kt. Mostly clear. Waves 1 ft or less.

Monday

WSW wind 5 to 11 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

W wind 6 to 10 kt. Partly cloudy. Waves 1 ft or less.

Tuesday

SW wind 7 to 12 kt, with gusts as high as 19 kt. A chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Tuesday Night

SW wind around 10 kt. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Waves 1 ft or less.

Wednesday

SW wind around 10 kt. A chance of showers. Waves 1 ft or less.

*Notices:

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.
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.