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New York, NY Local Forecast Office

15NM WSW Islip NY

Marine Point Forecast

[NOTICE]

Today
⇑W 19kt
1-2ft
Tonight
NW 20kt⇓
1-2ft
Friday
SE 7kt
1ft
Friday Night
Light Wind
1ft
Saturday
W 9kt
1ft
Saturday Night
W 9kt
1ft
Sunday
NW 8kt
1ft
Sunday Night
N 12kt
1ft
Monday
N 14kt
1ft

Associated Zone Forecast which includes this point

Last Update: 6:44 am EST Dec 4, 2025
Forecast Valid: 7am EST Dec 4, 2025-6pm EST Dec 10, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EST TODAY THROUGH

Today

W wind 12 to 15 kt increasing to 16 to 19 kt in the afternoon. Winds could gust as high as 28 kt. Mostly cloudy, then gradually becoming sunny. Seas 1 to 2 ft.

Tonight

NW wind 15 to 20 kt becoming N 8 to 11 kt after midnight. Winds could gust as high as 29 kt. Mostly clear. Seas 1 to 2 ft.

Friday

NNE wind 5 to 7 kt becoming S in the afternoon. Increasing clouds. Seas around 1 ft.

Friday Night

Variable winds 5 kt or less. A chance of light rain. Seas around 1 ft.

Saturday

NNW wind 5 to 9 kt becoming W in the afternoon. A slight chance of light rain before 1pm. Seas around 1 ft.

Saturday Night

W wind around 9 kt. Partly cloudy. Seas around 1 ft.

Sunday

NW wind around 8 kt. Partly sunny. Seas around 1 ft.

Sunday Night

N wind 8 to 12 kt. Mostly cloudy. Seas around 1 ft.

Monday

N wind around 14 kt, with gusts as high as 24 kt. Mostly sunny. Seas around 1 ft.

*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.