For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 7:14 pm EDT Mar 27, 2026
Forecast Valid: 8pm EDT Mar 27, 2026-6pm EDT Apr 3, 2026

Tonight

N wind 7 to 12 kt. Scattered rain and snow showers, mainly after 4am. Seas around 3 ft.

Saturday

N wind 14 to 19 kt. Scattered snow showers before 8am. Seas around 3 ft.

Saturday Night

NW wind 10 to 13 kt becoming N 5 to 8 kt after midnight. Partly cloudy. Seas 2 to 3 ft.

Sunday

S wind 7 to 12 kt increasing to 16 to 21 kt. Mostly sunny. Seas 2 to 3 ft.

Sunday Night

SW wind 21 to 24 kt decreasing to 18 to 21 kt after midnight. Mostly cloudy. Seas 6 ft subsiding to 4 ft.

Monday

SW wind 14 to 16 kt. Partly sunny. Seas 3 to 4 ft.

Monday Night

SSW wind around 13 kt. A chance of rain after 2am. Seas 3 to 4 ft.

Tuesday

SSW wind 14 to 17 kt increasing to 17 to 20 kt in the afternoon. A chance of rain. Seas around 4 ft.

Tuesday Night

SSW wind 27 to 29 kt. A chance of rain. Seas around 6 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.