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Detroit/Pontiac, MI Local Forecast Office

2NM NW Grosse Ile MI

Marine Point Forecast

[NOTICE]

Columbus Day
High: 77 °F
SSW 10kt
< 1ft
Tonight
Low: 66 °F
SSW 9kt
< 1ft
Tuesday
High: 83 °F
SW 14kt
< 1ft
Tuesday Night
Low: 60 °F
W 10kt⇓
< 1ft
Wednesday
High: 70 °F
⇑N 7kt
< 1ft
Wednesday Night
Low: 50 °F
NE 7kt
< 1ft
Thursday
High: 65 °F
E 9kt
< 1ft
Thursday Night
Low: 52 °F
E 7kt⇓
< 1ft
Friday
High: 63 °F
WNW 18kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:49 pm EDT Oct 12, 2026
Forecast Valid: 4pm EDT Oct 12, 2026-6pm EDT Oct 18, 2026

View Nearby Observations

Detailed Forecast

Columbus Day

SSW wind around 10 kt. Partly sunny. Waves 1 ft or less.

Tonight

SSW wind around 9 kt. A slight chance of rain and thunderstorms between 1am and 5am. Waves 1 ft or less.

Tuesday

SW wind 10 to 14 kt, with gusts as high as 23 kt. Partly sunny, then gradually becoming sunny. Waves 1 ft or less.

Tuesday Night

W wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Winds could gust as high as 18 kt. A chance of rain after 3am. Waves 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming N 5 to 7 kt in the morning. A chance of rain before 2pm. Waves 1 ft or less.

Wednesday Night

NE wind around 7 kt. Mostly cloudy. Waves 1 ft or less.

Thursday

E wind 7 to 9 kt. A chance of rain after 2pm. Waves 1 ft or less.

Thursday Night

E wind 5 to 7 kt becoming variable and less than 5 kt. Rain. Waves 1 ft or less.

Friday

WNW wind 15 to 18 kt, with gusts as high as 30 kt. 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.