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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 62 °F
SSE 11kt
< 1ft
Tonight
Low: 53 °F
SW 16kt
< 1ft
Wednesday
High: 58 °F
W 16kt
< 1ft
Wednesday Night
Low: 45 °F
NW 13kt
< 1ft
Thursday
High: 63 °F
N 11kt
< 1ft
Thursday Night
Low: 46 °F
Light Wind
< 1ft
Friday
High: 68 °F
⇑S 11kt
< 1ft
Friday Night
Low: 56 °F
S 10kt
< 1ft
Saturday
High: 83 °F
SW 14kt
< 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 May 12, 2026
Forecast Valid: 5pm EDT May 12, 2026-6pm EDT May 19, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SSE wind around 11 kt. Mostly cloudy. Waves 1 ft or less.

Tonight

SSE wind 11 to 16 kt becoming SW after midnight. Winds could gust as high as 24 kt. Showers and thunderstorms before 2am, then showers likely. Waves 1 ft or less.

Wednesday

W wind 14 to 16 kt, with gusts as high as 23 kt. Increasing clouds. Waves 1 ft or less.

Wednesday Night

NW wind 10 to 13 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

Thursday

N wind around 11 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming S 6 to 11 kt in the morning. Partly sunny. Waves 1 ft or less.

Friday Night

S wind around 10 kt. Mostly cloudy. Waves 1 ft or less.

Saturday

SW wind 8 to 14 kt, with gusts as high as 20 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.