For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 6:01 pm EST Jan 20, 2026
Forecast Valid: 9pm EST Jan 20, 2026-6pm EST Jan 27, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST WEDNESDAY...

Tonight

WNW wind 13 to 18 kt. Patchy freezing spray before 4am. Mostly clear. Seas 3 to 4 ft.

Wednesday

W wind 10 to 15 kt becoming SSW 16 to 21 kt in the afternoon. Increasing clouds. Seas 2 ft building to 4 ft.

Wednesday Night

SW wind 20 to 24 kt. Cloudy, then gradually becoming partly cloudy. Seas around 6 ft.

Thursday

WSW wind around 19 kt. Mostly sunny. Seas 4 to 5 ft.

Thursday Night

W wind 15 to 18 kt. Mostly cloudy. Seas 3 to 4 ft.

Friday

W wind 16 to 19 kt increasing to 19 to 22 kt in the afternoon. Mostly cloudy. Seas 3 to 4 ft.

Friday Night

NW wind 22 to 25 kt. Mostly cloudy. Seas around 4 ft.

Saturday

NNW wind 15 to 20 kt. Partly sunny. Seas 3 to 4 ft.

Saturday Night

NNW wind 15 to 18 kt becoming NNE after midnight. A chance of snow. 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.