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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 47 °F
WSW 24kt
< 1ft
Tonight
Low: 28 °F
WNW 23kt
< 1ft
Saturday
High: 41 °F
WNW 7kt
< 1ft
Saturday Night
Low: 32 °F
E 10kt
< 1ft
Sunday
High: 59 °F
SSE 14kt
< 1ft
Sunday Night
Low: 41 °F
S 19kt
< 1ft
Monday
High: 54 °F
WSW 22kt
< 1ft
Monday Night
Low: 20 °F
W 23kt
< 1ft
Tuesday
High: 30 °F
WNW 16kt
< 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 Mar 13, 2026
Forecast Valid: 9am EDT Mar 13, 2026-6pm EDT Mar 19, 2026

View Nearby Observations

Detailed Forecast

Today

S wind 20 to 24 kt becoming WSW in the afternoon. Winds could gust as high as 42 kt. Snow likely, possibly mixed with rain before 11am, then a chance of rain. Waves 1 ft or less.

Tonight

WNW wind 13 to 23 kt, with gusts as high as 39 kt. Mostly cloudy. Waves 1 ft or less.

Saturday

WNW wind 5 to 7 kt becoming WSW in the afternoon. Partly sunny. Waves 1 ft or less.

Saturday Night

E wind 5 to 10 kt. Snow likely before 5am, then rain and snow likely. Waves 1 ft or less.

Sunday

E wind around 14 kt becoming SSE in the afternoon. Winds could gust as high as 22 kt. Rain and snow likely before 11am, then a chance of rain between 11am and 2pm. Waves 1 ft or less.

Sunday Night

S wind 16 to 19 kt, with gusts as high as 31 kt. Rain, mainly after 8pm. Waves 1 ft or less.

Monday

WSW wind 17 to 22 kt, with gusts as high as 33 kt. Rain before 2pm, then a chance of snow. Waves 1 ft or less.

Monday Night

W wind 19 to 23 kt, with gusts as high as 36 kt. A chance of snow. Waves 1 ft or less.

Tuesday

WNW wind around 16 kt, with gusts as high as 25 kt. Mostly cloudy. 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.