For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 7:31 pm EDT Mar 26, 2026
Forecast Valid: 8pm EDT Mar 26, 2026-6pm EDT Apr 2, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...

Tonight

SSW wind 21 to 24 kt becoming WSW 18 to 21 kt after midnight. Winds could gust as high as 30 kt. Showers, mainly after 11pm. Seas 5 to 6 ft.

Friday

N wind 11 to 14 kt, with gusts as high as 20 kt. Showers, mainly before 11am. Seas 4 to 5 ft.

Friday Night

NE wind 8 to 11 kt becoming N after midnight. A slight chance of showers before 8pm. Seas around 3 ft.

Saturday

NW wind 13 to 16 kt, with gusts as high as 22 kt. Mostly sunny. Seas around 3 ft.

Saturday Night

NW wind 10 to 13 kt decreasing to 7 to 10 kt after midnight. Mostly clear. Seas 2 to 3 ft.

Sunday

SSW wind 11 to 16 kt increasing to 16 to 21 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

Sunday Night

SW wind 18 to 22 kt. Mostly cloudy. Seas around 5 ft.

Monday

SSW wind 15 to 17 kt. Partly sunny. Seas 4 to 5 ft.

Monday Night

WSW wind around 17 kt. Mostly cloudy. 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.