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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 83 °F
⇑SE 7kt
< 1ft
Tonight
Low: 68 °F
NE 9kt
< 1ft
Sunday
High: 78 °F
NE 11kt
< 1ft
Sunday Night
Low: 65 °F
NNE 11kt
< 1ft
Monday
High: 80 °F
NNE 10kt
< 1ft
Monday Night
Low: 64 °F
NE 9kt
< 1ft
Tuesday
High: 83 °F
ENE 7kt
< 1ft
Tuesday Night
Low: 67 °F
SE 6kt⇓
< 1ft
Wednesday
High: 85 °F
⇑WSW 7kt
< 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 Aug 1, 2026
Forecast Valid: 5am EDT Aug 1, 2026-6pm EDT Aug 7, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds less than 5 kt becoming SE 5 to 7 kt in the morning. A slight chance of showers and thunderstorms after 3pm. Waves 1 ft or less.

Tonight

E wind 7 to 9 kt becoming NE in the evening. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Waves 1 ft or less.

Sunday

NE wind 8 to 11 kt. Showers and thunderstorms before 11am, then showers and possibly a thunderstorm, mainly after 11am. Waves 1 ft or less.

Sunday Night

NNE wind 9 to 11 kt, with gusts as high as 18 kt. A chance of showers before 2am. Waves 1 ft or less.

Monday

NNE wind around 10 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

NE wind 5 to 9 kt. Partly cloudy. Waves 1 ft or less.

Tuesday

NNE wind 5 to 7 kt becoming E in the afternoon. A chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Tuesday Night

SE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm. Waves 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming WSW 5 to 7 kt in the afternoon. 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.