News Headlines

For More Weather Information:

Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Saturday
High: 84 °F
⇑SSW 7kt
< 1ft
Saturday Night
Low: 68 °F
SSW 7kt
< 1ft
Sunday
High: 88 °F
⇑WSW 7kt
< 1ft
Sunday Night
Low: 71 °F
W 6kt
< 1ft
Monday
High: 89 °F
WSW 10kt
< 1ft
Monday Night
Low: 70 °F
SW 10kt
< 1ft
Tuesday
High: 85 °F
NNW 11kt
< 1ft
Tuesday Night
Low: 66 °F
N 10kt
< 1ft
Wednesday
High: 84 °F
NNE 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 pm EDT Jul 24, 2026
Forecast Valid: 2am EDT Jul 25, 2026-6pm EDT Jul 31, 2026

View Nearby Observations

Detailed Forecast

Saturday

Variable winds less than 5 kt becoming SSW 5 to 7 kt in the afternoon. Mostly sunny. Waves 1 ft or less.

Saturday Night

SSW wind 5 to 7 kt. Partly cloudy. Waves 1 ft or less.

Sunday

Variable winds less than 5 kt becoming WSW 5 to 7 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Sunday Night

W wind around 6 kt becoming SW after midnight. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Waves 1 ft or less.

Monday

WSW wind 6 to 10 kt. A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Monday Night

SW wind 8 to 10 kt becoming W after midnight. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Waves 1 ft or less.

Tuesday

NNW wind 9 to 11 kt. A chance of showers before 8am. Waves 1 ft or less.

Tuesday Night

N wind 5 to 10 kt. Partly cloudy. Waves 1 ft or less.

Wednesday

NNE wind 6 to 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.