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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 86 °F
SW 14kt
< 1ft
Tonight
Low: 68 °F
SW 14kt
< 1ft
Saturday
High: 84 °F
W 12kt
< 1ft
Saturday Night
Low: 64 °F
WNW 8kt⇓
< 1ft
Sunday
High: 83 °F
⇑ENE 7kt
< 1ft
Sunday Night
Low: 63 °F
ENE 9kt
< 1ft
Monday
High: 83 °F
ESE 10kt
< 1ft
Monday Night
Low: 65 °F
ESE 10kt
< 1ft
Tuesday
High: 85 °F
S 10kt
< 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 Jun 5, 2026
Forecast Valid: 5am EDT Jun 5, 2026-6pm EDT Jun 11, 2026

View Nearby Observations

Detailed Forecast

Today

SW wind 6 to 14 kt, with gusts as high as 21 kt. Mostly sunny. Waves 1 ft or less.

Tonight

SW wind around 14 kt, with gusts as high as 21 kt. Showers and thunderstorms before 5am, then a slight chance of showers. Waves 1 ft or less.

Saturday

W wind around 12 kt, with gusts as high as 18 kt. Showers likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Waves 1 ft or less.

Saturday Night

WNW wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

Sunday

Variable winds less than 5 kt becoming ENE 5 to 7 kt in the afternoon. Sunny. Waves 1 ft or less.

Sunday Night

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

Monday

ESE wind 6 to 10 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

ESE wind 6 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Tuesday

S wind 5 to 10 kt. A chance of showers and thunderstorms after 2pm. 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.