For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 1:50 pm EST Dec 31, 2025
Forecast Valid: 2pm EST Dec 31, 2025-6pm EST Jan 6, 2026

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

This Afternoon

WSW wind 15 to 17 kt, with gusts as high as 25 kt. Partly sunny. Seas 1 ft or less.

Tonight

WSW wind 14 to 19 kt. Mostly cloudy. Seas 1 ft or less.

New Year's Day

WNW wind 20 to 22 kt, with gusts as high as 28 kt. A chance of snow showers before 10am. Seas 1 ft or less.

Thursday Night

W wind 12 to 15 kt. Partly cloudy. Seas 1 ft or less.

Friday

W wind 12 to 14 kt. Mostly sunny. Seas 1 ft or less.

Friday Night

W wind around 12 kt. Mostly clear. Seas 1 ft or less.

Saturday

WNW wind 8 to 10 kt. Increasing clouds. Seas 1 ft or less.

Saturday Night

WNW wind around 6 kt becoming N after midnight. Mostly cloudy. Seas 1 ft or less.

Sunday

NW wind 7 to 10 kt. Mostly sunny. Seas 1 ft or less.

*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.