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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Tonight
Low: 29 °F
N 13kt
< 1ft
Friday
High: 40 °F
NNE 12kt
< 1ft
Friday Night
Low: 26 °F
NNE 7kt⇓
< 1ft
Saturday
High: 44 °F
WNW 9kt
< 1ft
Saturday Night
Low: 34 °F
SSW 9kt
< 1ft
Sunday
High: 56 °F
SW 11kt
< 1ft
Sunday Night
Low: 44 °F
SSW 9kt
< 1ft
Monday
High: 62 °F
SW 9kt
< 1ft
Monday Night
Low: 44 °F
E 9kt
< 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 pm EDT Mar 26, 2026
Forecast Valid: 7pm EDT Mar 26, 2026-6pm EDT Apr 2, 2026

View Nearby Observations

Detailed Forecast

Tonight

N wind 11 to 13 kt, with gusts as high as 20 kt. Rain and possibly a thunderstorm before 2am, then a slight chance of rain between 2am and 3am. Waves 1 ft or less.

Friday

NNE wind 9 to 12 kt, with gusts as high as 18 kt. Mostly sunny. Waves 1 ft or less.

Friday Night

NNE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.

Saturday

WNW wind 5 to 9 kt. Sunny. Waves 1 ft or less.

Saturday Night

SSW wind around 9 kt. Mostly cloudy. Waves 1 ft or less.

Sunday

SW wind 9 to 11 kt. Partly sunny. Waves 1 ft or less.

Sunday Night

SSW wind 7 to 9 kt. Mostly cloudy. Waves 1 ft or less.

Monday

SW wind 7 to 9 kt. Partly sunny. Waves 1 ft or less.

Monday Night

E wind around 9 kt. A chance of rain and thunderstorms after 8pm. 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.