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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 66 °F
SW 11kt
< 1ft
Tonight
Low: 57 °F
SSW 10kt
< 1ft
Tuesday
High: 72 °F
SW 16kt
< 1ft
Tuesday Night
Low: 42 °F
WSW 13kt
< 1ft
Wednesday
High: 47 °F
NE 11kt
< 1ft
Wednesday Night
Low: 36 °F
NE 11kt
< 1ft
Thursday
High: 64 °F
E 12kt
< 1ft
Thursday Night
Low: 53 °F
SSW 12kt
< 1ft
Friday
High: 67 °F
WSW 11kt
< 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 30, 2026
Forecast Valid: 7am EDT Mar 30, 2026-6pm EDT Apr 5, 2026

View Nearby Observations

Detailed Forecast

Today

SW wind 7 to 11 kt. Partly sunny. Waves 1 ft or less.

Tonight

SSW wind 8 to 10 kt. Rain and thunderstorms likely, mainly before 2am. Waves 1 ft or less.

Tuesday

SW wind 12 to 16 kt, with gusts as high as 25 kt. A chance of rain and thunderstorms, then rain likely after 8am. Waves 1 ft or less.

Tuesday Night

WSW wind 11 to 13 kt becoming WNW after midnight. Winds could gust as high as 22 kt. Rain and possibly a thunderstorm before 2am, then rain likely. Waves 1 ft or less.

Wednesday

NE wind 9 to 11 kt. Rain likely, mainly before 8am. Waves 1 ft or less.

Wednesday Night

NE wind around 11 kt. Rain likely, mainly after 2am. Waves 1 ft or less.

Thursday

E wind around 12 kt becoming SSE in the afternoon. Winds could gust as high as 19 kt. Rain. Waves 1 ft or less.

Thursday Night

SSW wind around 12 kt, with gusts as high as 20 kt. Rain. Waves 1 ft or less.

Friday

WSW wind around 11 kt, with gusts as high as 18 kt. A chance of rain. 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.