For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 4:11 am EDT Apr 11, 2026
Forecast Valid: 7am EDT Apr 11, 2026-6pm EDT Apr 17, 2026

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

Today

NW wind 9 to 13 kt. Sunny. Seas around 4 ft.

Tonight

NW wind 8 to 10 kt becoming N after midnight. Clear. Seas around 4 ft.

Sunday

NE wind 5 to 9 kt becoming SE in the afternoon. Increasing clouds. Seas around 3 ft.

Sunday Night

S wind 12 to 15 kt. Mostly cloudy. Seas 3 to 4 ft.

Monday

SSW wind 18 to 20 kt. A slight chance of showers after 2pm. Seas 4 ft building to 6 ft.

Monday Night

WSW wind 17 to 20 kt decreasing to 13 to 16 kt after midnight. Mostly cloudy. Seas 6 ft subsiding to 4 ft.

Tuesday

W wind 8 to 10 kt becoming SSW in the afternoon. Partly sunny. Seas around 3 ft.

Tuesday Night

SSW wind 9 to 13 kt. Mostly cloudy. Seas around 3 ft.

Wednesday

S wind 8 to 13 kt. Partly sunny. Seas 2 to 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.