News Headlines

For More Weather Information:

Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 91 °F
WSW 8kt
< 1ft
Tonight
Low: 75 °F
WSW 6kt
< 1ft
Wednesday
High: 92 °F
SW 10kt
< 1ft
Wednesday Night
Low: 74 °F
WSW 8kt
< 1ft
Thursday
High: 88 °F
⇑WNW 6kt
< 1ft
Thursday Night
Low: 70 °F
Light Wind
< 1ft
Friday
High: 84 °F
Light Wind
< 1ft
Friday Night
Low: 68 °F
Light Wind
< 1ft
Saturday
High: 81 °F
⇑E 8kt
< 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 1, 2026
Forecast Valid: 5am EDT Sep 1, 2026-6pm EDT Sep 7, 2026

View Nearby Observations

Detailed Forecast

Today

WSW wind 6 to 8 kt. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 9am. Waves 1 ft or less.

Tonight

WSW wind around 6 kt. A slight chance of showers and thunderstorms. Waves 1 ft or less.

Wednesday

SW wind 5 to 10 kt. A chance of showers and thunderstorms after 3pm. Waves 1 ft or less.

Wednesday Night

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

Thursday

Variable winds less than 5 kt becoming WNW around 6 kt in the morning. Showers likely before 8am, then a chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms 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, with thunderstorms also possible after 2pm. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of thunderstorms before 8pm, then a chance of showers after 2am. Waves 1 ft or less.

Saturday

Variable winds less than 5 kt becoming E 5 to 8 kt in the morning. A chance of showers. 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.