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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Juneteenth
High: 76 °F
WNW 14kt
< 1ft
Tonight
Low: 58 °F
W 11kt
< 1ft
Saturday
High: 77 °F
WSW 11kt
< 1ft
Saturday Night
Low: 58 °F
WNW 10kt
< 1ft
Sunday
High: 76 °F
Light Wind
< 1ft
Sunday Night
Low: 60 °F
E 13kt
< 1ft
Monday
High: 74 °F
NE 15kt
< 1ft
Monday Night
Low: 57 °F
N 9kt
< 1ft
Tuesday
High: 76 °F
N 6kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 12:13 pm EDT Jun 19, 2026
Forecast Valid: 1pm EDT Jun 19, 2026-6pm EDT Jun 25, 2026

View Nearby Observations

Detailed Forecast

Juneteenth

WNW wind around 14 kt, with gusts as high as 21 kt. Mostly sunny. Waves 1 ft or less.

Tonight

W wind 6 to 11 kt. A slight chance of showers after 5am. Waves 1 ft or less.

Saturday

WSW wind 5 to 11 kt. A chance of showers before 9am, then a chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Saturday Night

WNW wind 5 to 10 kt. Mostly clear. Waves 1 ft or less.

Sunday

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

Sunday Night

E wind 7 to 13 kt, with gusts as high as 19 kt. Showers and possibly a thunderstorm, mainly after 2am. Waves 1 ft or less.

Monday

NE wind 12 to 15 kt, with gusts as high as 21 kt. Showers and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm. Waves 1 ft or less.

Monday Night

N wind 6 to 9 kt. Partly cloudy. Waves 1 ft or less.

Tuesday

N wind around 6 kt. Mostly sunny. 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.