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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 72 °F
W 9kt
< 1ft
Tonight
Low: 58 °F
SW 9kt
< 1ft
Tuesday
High: 77 °F
SW 13kt
< 1ft
Tuesday Night
Low: 58 °F
SSW 12kt
< 1ft
Wednesday
High: 76 °F
WSW 10kt
< 1ft
Wednesday Night
Low: 63 °F
⇑S 21kt
< 1ft
Thursday
High: 77 °F
WSW 20kt
< 1ft
Thursday Night
Low: 58 °F
W 14kt
< 1ft
Juneteenth
High: 75 °F
W 14kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:25 am EDT Jun 15, 2026
Forecast Valid: 9am EDT Jun 15, 2026-6pm EDT Jun 21, 2026

View Nearby Observations

Detailed Forecast

Today

W wind 6 to 9 kt. Sunny early, then becoming partly sunny. Waves 1 ft or less.

Tonight

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

Tuesday

SW wind 10 to 13 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Tuesday Night

SSW wind 9 to 12 kt becoming W in the evening. Winds could gust as high as 24 kt. Showers and thunderstorms likely. Waves 1 ft or less.

Wednesday

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

Wednesday Night

S wind 9 to 14 kt increasing to 16 to 21 kt after midnight. Winds could gust as high as 30 kt. A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Waves 1 ft or less.

Thursday

WSW wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

W wind 8 to 14 kt, with gusts as high as 21 kt. Mostly clear. Waves 1 ft or less.

Juneteenth

W wind 8 to 14 kt, with gusts as high as 20 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.