For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 1:04 am EST Dec 30, 2025
Forecast Valid: 12pm EST Dec 30, 2025-6pm EST Jan 5, 2026

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

This Afternoon

W wind around 31 kt, with gusts as high as 37 kt. Mostly cloudy. Seas 6 to 7 ft.

Tonight

W wind 28 to 31 kt decreasing to 24 to 27 kt after midnight. Mostly cloudy. Seas 7 ft subsiding to 5 ft.

Wednesday

W wind around 21 kt. Mostly cloudy. Seas 4 to 5 ft.

Wednesday Night

WSW wind 20 to 23 kt. A chance of snow, mainly after 1am. Seas 4 to 5 ft.

New Year's Day

WNW wind 20 to 23 kt. A slight chance of snow before 1pm. Seas 4 to 5 ft.

Thursday Night

WNW wind 16 to 19 kt. Partly cloudy. Seas 3 to 4 ft.

Friday

W wind around 17 kt. Partly sunny. Seas around 3 ft.

Friday Night

W wind around 16 kt becoming WNW after midnight. Partly cloudy. Seas 2 to 3 ft.

Saturday

NW wind 12 to 14 kt. Partly sunny. 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.