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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 77 °F
N 7kt
< 1ft
Tonight
Low: 58 °F
NE 7kt⇓
< 1ft
Wednesday
High: 77 °F
⇑S 8kt
< 1ft
Wednesday Night
Low: 62 °F
SSE 6kt⇓
< 1ft
Thursday
High: 79 °F
WSW 9kt
< 1ft
Thursday Night
Low: 61 °F
W 6kt⇓
< 1ft
Friday
High: 78 °F
Light Wind
< 1ft
Friday Night
Low: 63 °F
NE 6kt
< 1ft
Saturday
High: 81 °F
ENE 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 Jun 23, 2026
Forecast Valid: 6am EDT Jun 23, 2026-6pm EDT Jun 29, 2026

View Nearby Observations

Detailed Forecast

Today

N wind around 7 kt. Sunny. Waves 1 ft or less.

Tonight

NE wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.

Wednesday Night

SSE wind around 6 kt becoming variable and less than 5 kt. Showers likely, mainly after 2am. Waves 1 ft or less.

Thursday

WSW wind 7 to 9 kt. Showers likely before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm. Waves 1 ft or less.

Thursday Night

W wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers before 8pm, then a chance of showers after 2am. Waves 1 ft or less.

Friday

Variable winds 5 kt or less. A chance of showers before 2pm. Waves 1 ft or less.

Friday Night

NE wind around 6 kt. A chance of showers. Waves 1 ft or less.

Saturday

NNE wind 5 to 7 kt becoming E 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.