For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 7:42 am EST Dec 7, 2025
Forecast Valid: 8am EST Dec 7, 2025-6pm EST Dec 13, 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH

Today

NNW wind 5 to 10 kt becoming WSW in the afternoon. Increasing clouds. Seas around 2 ft.

Tonight

W wind 14 to 17 kt becoming NW 19 to 22 kt after midnight. Partly cloudy. Seas 3 to 4 ft.

Monday

N wind 21 to 24 kt decreasing to 18 to 21 kt in the afternoon. Mostly sunny. Seas 3 to 4 ft.

Monday Night

N wind 13 to 16 kt decreasing to 8 to 11 kt after midnight. Partly cloudy. Seas 2 to 3 ft.

Tuesday

Variable winds less than 5 kt becoming SSW 13 to 18 kt in the morning. Increasing clouds. Seas around 2 ft.

Tuesday Night

WSW wind 21 to 26 kt. Mostly cloudy. Seas 4 ft building to 6 ft.

Wednesday

SSW wind 20 to 23 kt increasing to 25 to 28 kt in the afternoon. A chance of rain. Seas 5 ft building to 8 ft.

Wednesday Night

SW wind around 26 kt becoming W after midnight. A chance of rain. Seas 7 to 8 ft.

Thursday

WNW wind 18 to 23 kt. Partly sunny. Seas 6 ft subsiding to 4 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.