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New York, NY Local Forecast Office

7NM S Islip NY

Marine Point Forecast

[NOTICE]

Tonight
WSW 11kt
3ft
Independence Day
NW 9kt
2-3ft
Friday Night
WSW 8kt
2ft
Saturday
⇑S 8kt
2ft
Saturday Night
SW 11kt
2-3ft
Sunday
SSW 13kt
2-3ft
Sunday Night
SSW 16kt
3ft
Monday
S 12kt
2-3ft
Monday Night
SSW 13kt
4ft

Associated Zone Forecast which includes this point

Last Update: 2:32 pm EDT Jul 3, 2025
Forecast Valid: 7pm EDT Jul 3, 2025-6pm EDT Jul 10, 2025

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Detailed Forecast

Tonight

WSW wind 8 to 11 kt becoming NW in the evening. A chance of showers and thunderstorms, mainly before 8pm. Some of the storms could be severe. Seas around 3 ft.

Independence Day

NW wind 7 to 9 kt becoming SW in the afternoon. Sunny. Seas 2 to 3 ft.

Friday Night

WSW wind 5 to 8 kt becoming N after midnight. Mostly clear. Seas around 2 ft.

Saturday

Variable winds less than 5 kt becoming S 5 to 8 kt in the afternoon. Mostly sunny. Seas around 2 ft.

Saturday Night

SW wind around 11 kt. Partly cloudy. Seas 2 to 3 ft.

Sunday

SSW wind 9 to 13 kt. Mostly sunny. Seas 2 to 3 ft.

Sunday Night

SSW wind 11 to 16 kt. Partly cloudy. Seas around 3 ft.

Monday

S wind 8 to 12 kt. Partly sunny. Seas 2 to 3 ft.

Monday Night

SSW wind 9 to 13 kt. A chance of showers. Seas around 4 ft.

Winds and seas may be higher in and near tstms.

*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.