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15NM SW Islip NY

[NOTICE]

Last Update: 6:50 pm EDT Apr 19, 2026
Forecast Valid: 9pm EDT Apr 19, 2026-6pm EDT Apr 26, 2026

Tonight

W wind 11 to 14 kt decreasing to 6 to 9 kt after midnight. Winds could gust as high as 20 kt. A slight chance of showers before 10pm. Seas 2 to 3 ft.

Monday

WSW wind 8 to 11 kt becoming NW in the afternoon. A chance of showers. Seas around 2 ft.

Monday Night

NNW wind 14 to 16 kt. Partly cloudy. Seas around 2 ft.

Tuesday

N wind 8 to 11 kt becoming NW 5 to 8 kt in the afternoon. Sunny. Seas 1 to 2 ft.

Tuesday Night

S wind 12 to 15 kt. A slight chance of showers after 2am. Seas 2 to 3 ft.

Wednesday

S wind 10 to 14 kt. A chance of showers before noon. Seas around 3 ft.

Wednesday Night

E wind around 7 kt. Partly cloudy. Seas around 3 ft.

Thursday

N wind 5 to 7 kt becoming SW in the afternoon. Mostly sunny. Seas around 3 ft.

Thursday Night

SW wind around 9 kt becoming N after midnight. Partly cloudy. 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.