For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 12:50 pm EST Dec 8, 2025
Forecast Valid: 5pm EST Dec 8, 2025-6pm EST Dec 15, 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING...

Tonight

N wind 12 to 16 kt. Mostly cloudy, then gradually becoming mostly clear. Seas 2 to 3 ft.

Tuesday

Variable winds less than 5 kt becoming SSW 7 to 12 kt in the afternoon. Increasing clouds. Seas around 2 ft.

Tuesday Night

WSW wind 19 to 22 kt increasing to 23 to 26 kt in the evening. Mostly cloudy. Seas 2 ft building to 5 ft.

Wednesday

SSW wind 21 to 24 kt increasing to 25 to 28 kt in the afternoon. Rain likely, mainly after 1pm. Seas 5 ft building to 8 ft.

Wednesday Night

SW wind 25 to 27 kt becoming W after midnight. Winds could gust as high as 33 kt. A chance of rain before 1am. Seas 7 to 8 ft.

Thursday

WNW wind 21 to 23 kt, with gusts as high as 31 kt. Mostly sunny. Seas 5 to 6 ft.

Thursday Night

WNW wind around 21 kt, with gusts as high as 29 kt. Mostly cloudy. Seas 4 to 5 ft.

Friday

W wind 17 to 19 kt, with gusts as high as 26 kt. Mostly sunny. Seas around 3 ft.

Friday Night

W wind 17 to 19 kt, with gusts as high as 26 kt. A chance of snow. Seas around 3 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.