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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 81 °F
⇑SSE 8kt
< 1ft
Tonight
Low: 71 °F
S 8kt
< 1ft
Wednesday
High: 86 °F
WSW 13kt
< 1ft
Wednesday Night
Low: 67 °F
W 10kt
< 1ft
Thursday
High: 79 °F
WNW 9kt
< 1ft
Thursday Night
Low: 60 °F
N 7kt
< 1ft
Friday
High: 77 °F
⇑SSE 7kt
< 1ft
Friday Night
Low: 64 °F
SE 7kt
< 1ft
Saturday
High: 82 °F
SSW 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 Sep 8, 2026
Forecast Valid: 7am EDT Sep 8, 2026-6pm EDT Sep 14, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds less than 5 kt becoming SSE 5 to 8 kt in the afternoon. Mostly sunny. Waves 1 ft or less.

Tonight

SE wind 6 to 8 kt becoming SSW after midnight. Mostly cloudy. Waves 1 ft or less.

Wednesday

WSW wind 10 to 13 kt, with gusts as high as 22 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Waves 1 ft or less.

Wednesday Night

W wind 6 to 10 kt. Showers likely and possibly a thunderstorm before 8pm. Waves 1 ft or less.

Thursday

WNW wind 5 to 9 kt. Mostly cloudy. Waves 1 ft or less.

Thursday Night

N wind 5 to 7 kt. Mostly clear. Waves 1 ft or less.

Friday

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

Friday Night

SE wind 5 to 7 kt. Mostly clear. Waves 1 ft or less.

Saturday

SSW wind 6 to 11 kt. 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.