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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 81 °F
WSW 15kt
< 1ft
Tonight
Low: 60 °F
WNW 10kt⇓
< 1ft
Wednesday
High: 70 °F
⇑N 7kt
< 1ft
Wednesday Night
Low: 51 °F
NE 9kt
< 1ft
Thursday
High: 65 °F
E 8kt
< 1ft
Thursday Night
Low: 51 °F
E 8kt
< 1ft
Friday
High: 61 °F
WNW 18kt
< 1ft
Friday Night
Low: 38 °F
NW 19kt
< 1ft
Saturday
High: 55 °F
NW 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 am EDT Oct 13, 2026
Forecast Valid: 1pm EDT Oct 13, 2026-6pm EDT Oct 19, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

WSW wind around 15 kt, with gusts as high as 24 kt. Sunny. Waves 1 ft or less.

Tonight

WNW wind 5 to 10 kt becoming variable and less than 5 kt after midnight. A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 5am. Waves 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming N 5 to 7 kt in the morning. Rain likely before 11am. Waves 1 ft or less.

Wednesday Night

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

Thursday

E wind around 8 kt. A chance of rain after 2pm. Waves 1 ft or less.

Thursday Night

E wind 5 to 8 kt becoming W after midnight. Rain likely, mainly between 8pm and 2am. Waves 1 ft or less.

Friday

WNW wind 15 to 18 kt, with gusts as high as 30 kt. A chance of rain before 2pm. Waves 1 ft or less.

Friday Night

NW wind 15 to 19 kt, with gusts as high as 29 kt. Partly cloudy. Waves 1 ft or less.

Saturday

NW wind around 9 kt. 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.