For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 12:55 pm EST Dec 6, 2025
Forecast Valid: 2pm EST Dec 6, 2025-6pm EST Dec 12, 2025

This Afternoon

W wind 9 to 12 kt. Partly sunny. Seas around 2 ft.

Tonight

W wind 11 to 15 kt becoming NW after midnight. Partly cloudy. Seas around 3 ft.

Sunday

NNW wind 5 to 10 kt becoming SW in the afternoon. Partly sunny. Seas 2 to 3 ft.

Sunday Night

WSW wind 13 to 16 kt becoming NW 18 to 21 kt after midnight. Partly cloudy. Seas 3 to 4 ft.

Monday

N wind 19 to 23 kt. Mostly sunny. Seas 3 to 4 ft.

Monday Night

N wind 14 to 17 kt decreasing to 8 to 11 kt after midnight. Partly cloudy. Seas 2 to 3 ft.

Tuesday

NNE wind 5 to 8 kt becoming SSW 13 to 18 kt. Winds could gust as high as 24 kt. Increasing clouds. Seas 2 to 3 ft.

Tuesday Night

WSW wind 19 to 23 kt, with gusts as high as 29 kt. Mostly cloudy. Seas 4 to 5 ft.

Wednesday

SSW wind 18 to 23 kt, with gusts as high as 29 kt. A chance of rain. Seas 4 ft building to 7 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.