For More Weather Information:

5NM SSE Islip NY

[NOTICE]

Last Update: 5:42 pm EST Dec 9, 2025
Forecast Valid: 7pm EST Dec 9, 2025-6pm EST Dec 16, 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Tonight

SW wind 18 to 22 kt, with gusts as high as 28 kt. Mostly cloudy. Seas around 2 ft.

Wednesday

SSW wind 21 to 24 kt increasing to 25 to 28 kt in the afternoon. Winds could gust as high as 38 kt. Rain likely after 1pm. Seas around 2 ft.

Wednesday Night

WSW wind 23 to 27 kt becoming W after midnight. Winds could gust as high as 34 kt. A chance of rain before 1am. Seas around 2 ft.

Thursday

W wind around 25 kt, with gusts as high as 34 kt. Mostly sunny. Seas around 2 ft.

Thursday Night

W wind 26 to 29 kt decreasing to 22 to 25 kt after midnight. Winds could gust as high as 35 kt. Partly cloudy. Seas around 2 ft.

Friday

W wind 18 to 21 kt, with gusts as high as 28 kt. Mostly sunny. Seas around 2 ft.

Friday Night

W wind 12 to 16 kt, with gusts as high as 22 kt. Mostly cloudy. Seas 1 to 2 ft.

Saturday

W wind 13 to 16 kt increasing to 18 to 21 kt in the afternoon. Winds could gust as high as 28 kt. Mostly cloudy. Seas 1 to 2 ft.

Saturday Night

W wind 17 to 20 kt, with gusts as high as 27 kt. A chance of snow. Seas around 2 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.