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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 70 °F
SSW 16kt
< 1ft
Tonight
Low: 46 °F
ENE 9kt
< 1ft
Saturday
High: 69 °F
SSW 14kt
< 1ft
Saturday Night
Low: 40 °F
W 12kt
< 1ft
Sunday
High: 46 °F
W 16kt
< 1ft
Sunday Night
Low: 34 °F
WNW 12kt
< 1ft
Monday
High: 49 °F
W 11kt
< 1ft
Monday Night
Low: 30 °F
WNW 10kt
< 1ft
Tuesday
High: 43 °F
NNW 11kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:24 am EDT Apr 3, 2026
Forecast Valid: 5am EDT Apr 3, 2026-6pm EDT Apr 9, 2026

View Nearby Observations

Detailed Forecast

Today

SSW wind 12 to 16 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Partly sunny. Waves 1 ft or less.

Tonight

NNW wind 5 to 9 kt becoming ENE after midnight. Rain and thunderstorms likely, then rain and possibly a thunderstorm after 3am. Waves 1 ft or less.

Saturday

ESE wind 9 to 14 kt becoming SSW in the afternoon. Winds could gust as high as 22 kt. Rain likely and possibly a thunderstorm before 8am, then rain likely between 8am and 2pm, then rain and possibly a thunderstorm after 2pm. Waves 1 ft or less.

Saturday Night

W wind around 12 kt, with gusts as high as 19 kt. Rain and possibly a thunderstorm before 8pm, then a chance of rain between 8pm and 2am. Waves 1 ft or less.

Sunday

W wind 12 to 16 kt, with gusts as high as 24 kt. Mostly cloudy. Waves 1 ft or less.

Sunday Night

WNW wind 6 to 12 kt, with gusts as high as 19 kt. Mostly cloudy. Waves 1 ft or less.

Monday

W wind 6 to 11 kt. A chance of rain after 2pm. Waves 1 ft or less.

Monday Night

WNW wind around 10 kt. A chance of rain. Waves 1 ft or less.

Tuesday

NNW wind 7 to 11 kt. Partly 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.