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Detroit/Pontiac, MI Local Forecast Office

3NM N Grosse Ile MI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 69 °F
WSW 13kt
< 1ft
Tonight
Low: 40 °F
WSW 11kt
< 1ft
Wednesday
High: 43 °F
NNE 11kt
< 1ft
Wednesday Night
Low: 38 °F
NE 11kt
< 1ft
Thursday
High: 69 °F
S 11kt
< 1ft
Thursday Night
Low: 59 °F
SSW 15kt
< 1ft
Friday
High: 72 °F
WSW 12kt
< 1ft
Friday Night
Low: 51 °F
E 9kt
< 1ft
Saturday
High: 70 °F
SSW 16kt
< 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 pm EDT Mar 31, 2026
Forecast Valid: 5pm EDT Mar 31, 2026-6pm EDT Apr 7, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

WSW wind around 13 kt, with gusts as high as 25 kt. Showers likely and possibly a thunderstorm. Waves 1 ft or less.

Tonight

WSW wind 7 to 11 kt becoming N after midnight. Winds could gust as high as 20 kt. Showers and possibly a thunderstorm before 3am, then a slight chance of showers between 3am and 4am. Some of the storms could produce heavy rainfall. Waves 1 ft or less.

Wednesday

NNE wind 9 to 11 kt. A chance of showers after 11am. Waves 1 ft or less.

Wednesday Night

NE wind 9 to 11 kt, with gusts as high as 20 kt. Showers likely, mainly after 2am. Waves 1 ft or less.

Thursday

E wind 8 to 11 kt becoming S in the afternoon. Winds could gust as high as 18 kt. Showers likely, mainly before 8am. Waves 1 ft or less.

Thursday Night

SSW wind 13 to 15 kt, with gusts as high as 24 kt. Showers likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then showers likely after 2am. Waves 1 ft or less.

Friday

WSW wind around 12 kt, with gusts as high as 19 kt. A chance of showers after 2pm. Waves 1 ft or less.

Friday Night

SW wind 7 to 9 kt becoming E in the evening. Rain likely. Waves 1 ft or less.

Saturday

SE wind 11 to 16 kt becoming SSW in the afternoon. Winds could gust as high as 23 kt. Rain. 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.