News Headlines

For More Weather Information:

Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

Today
High: 78 °F
NNE 12kt
< 1ft
Tonight
Low: 63 °F
N 13kt
< 1ft
Monday
High: 81 °F
N 10kt
< 1ft
Monday Night
Low: 62 °F
NE 7kt⇓
< 1ft
Tuesday
High: 83 °F
⇑ESE 6kt
< 1ft
Tuesday Night
Low: 66 °F
SSE 6kt⇓
< 1ft
Wednesday
High: 86 °F
⇑SSW 8kt
< 1ft
Wednesday Night
Low: 68 °F
SSW 7kt
< 1ft
Thursday
High: 82 °F
⇑SW 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 Aug 2, 2026
Forecast Valid: 5am EDT Aug 2, 2026-6pm EDT Aug 8, 2026

View Nearby Observations

Detailed Forecast

Today

NNE wind 10 to 12 kt, with gusts as high as 18 kt. Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms, mainly between 3pm and 5pm. Some of the storms could produce heavy rainfall. Waves 1 ft or less.

Tonight

N wind 9 to 13 kt, with gusts as high as 19 kt. Mostly cloudy. Waves 1 ft or less.

Monday

N wind around 10 kt. Sunny. Waves 1 ft or less.

Monday Night

NE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming ESE around 6 kt in the afternoon. Sunny. Waves 1 ft or less.

Tuesday Night

SSE wind around 6 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 SSW 5 to 8 kt in the afternoon. Mostly sunny. Waves 1 ft or less.

Wednesday Night

SSW wind 5 to 7 kt. Partly cloudy. Waves 1 ft or less.

Thursday

Variable winds less than 5 kt becoming SW 5 to 7 kt in the morning. 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.