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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Sunday
High: 44 °F
WNW 16kt
< 1ft
Sunday Night
Low: 31 °F
WNW 13kt
< 1ft
Monday
High: 44 °F
WNW 11kt
< 1ft
Monday Night
Low: 29 °F
Light Wind
< 1ft
Tuesday
High: 40 °F
⇑SE 6kt
< 1ft
Tuesday Night
Low: 31 °F
Light Wind
< 1ft
Wednesday
High: 45 °F
E 6kt
< 1ft
Wednesday Night
Low: 35 °F
Light Wind
< 1ft
Thursday
High: 49 °F
⇑S 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: 12:50 am EST Nov 16, 2025
Forecast Valid: 2am EST Nov 16, 2025-6pm EST Nov 22, 2025

View Nearby Observations

Detailed Forecast

Sunday

WNW wind 12 to 16 kt, with gusts as high as 26 kt. Mostly sunny. Waves 1 ft or less.

Sunday Night

WNW wind 9 to 13 kt, with gusts as high as 20 kt. Mostly clear. Waves 1 ft or less.

Monday

WNW wind 9 to 11 kt. Sunny. Waves 1 ft or less.

Monday Night

Variable winds 5 kt or less. Increasing clouds. Waves 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming SE around 6 kt in the afternoon. A chance of snow before 7am, then a chance of rain and snow between 7am and 1pm, then a chance of rain after 1pm. Waves 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. A chance of rain before 1am. Waves 1 ft or less.

Wednesday

E wind around 6 kt. Partly sunny. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.

Thursday

Variable winds less than 5 kt becoming S 5 to 7 kt in the morning. A chance of rain. 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.