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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Overnight
Low: 69 °F
WSW 7kt
< 1ft
Wednesday
High: 90 °F
W 9kt
< 1ft
Wednesday Night
Low: 73 °F
SW 10kt
< 1ft
Thursday
High: 92 °F
WSW 11kt
< 1ft
Thursday Night
Low: 71 °F
SSW 14kt
< 1ft
Friday
High: 84 °F
W 12kt
< 1ft
Friday Night
Low: 62 °F
W 11kt
< 1ft
Saturday
High: 85 °F
W 11kt
< 1ft
Saturday Night
Low: 65 °F
WSW 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: 8:25 pm EDT Jun 9, 2026
Forecast Valid: 12am EDT Jun 10, 2026-6pm EDT Jun 16, 2026

View Nearby Observations

Detailed Forecast

Overnight

WSW wind around 7 kt. A chance of showers and thunderstorms, mainly before 1am. Waves 1 ft or less.

Wednesday

W wind 6 to 9 kt. A slight chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Wednesday Night

SW wind 8 to 10 kt. A chance of showers and thunderstorms before 3am, then showers likely after 5am. Waves 1 ft or less.

Thursday

WSW wind around 11 kt. A chance of showers before 8am. Waves 1 ft or less.

Thursday Night

SSW wind 8 to 14 kt, with gusts as high as 21 kt. A chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Waves 1 ft or less.

Friday

W wind around 12 kt, with gusts as high as 18 kt. Partly sunny, then gradually becoming sunny. Waves 1 ft or less.

Friday Night

W wind 6 to 11 kt. Clear. Waves 1 ft or less.

Saturday

W wind 5 to 11 kt, with gusts as high as 18 kt. Sunny. Waves 1 ft or less.

Saturday Night

WSW wind 7 to 9 kt. Mostly clear. 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.