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15NM SW Islip NY

[NOTICE]

Last Update: 7:26 pm EDT Apr 15, 2026
Forecast Valid: 9pm EDT Apr 15, 2026-6pm EDT Apr 22, 2026

Tonight

SSW wind 12 to 15 kt decreasing to 9 to 12 kt after midnight. A chance of showers and thunderstorms before 11pm. Seas 3 to 4 ft.

Thursday

SW wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

Thursday Night

SSW wind 15 to 18 kt decreasing to 10 to 13 kt after midnight. Mostly cloudy. Seas 3 to 4 ft.

Friday

W wind around 9 kt. A chance of showers, mainly after 2pm. Seas around 3 ft.

Friday Night

NNW wind 6 to 8 kt becoming ENE after midnight. A chance of showers before 8pm. Seas 2 to 3 ft.

Saturday

E wind 8 to 10 kt. Partly sunny. Seas around 2 ft.

Saturday Night

ESE wind around 10 kt. A chance of showers after 2am. Seas around 2 ft.

Sunday

SSW wind 14 to 16 kt becoming WNW in the morning. Showers likely. Seas 2 to 3 ft.

Sunday Night

WNW wind 17 to 20 kt. A chance of showers. Seas 3 to 4 ft.

Winds and seas may be higher in and near tstms.

*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.