For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 1:04 am EST Dec 30, 2025
Forecast Valid: 11am EST Dec 30, 2025-6pm EST Jan 5, 2026

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

Today

W wind around 23 kt, with gusts as high as 36 kt. Mostly cloudy. Seas 1 ft or less.

Tonight

W wind 17 to 22 kt, with gusts as high as 30 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

WSW wind around 15 kt, with gusts as high as 21 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday Night

WSW wind around 15 kt. A chance of snow after 1am. Seas 1 ft or less.

New Year's Day

WNW wind around 15 kt. A slight chance of snow before 1pm. Seas 1 ft or less.

Thursday Night

WNW wind 12 to 14 kt. Partly cloudy. Seas 1 ft or less.

Friday

W wind 11 to 13 kt. Partly sunny. Seas 1 ft or less.

Friday Night

W wind 10 to 12 kt becoming WNW after midnight. Partly cloudy. Seas 1 ft or less.

Saturday

WNW wind around 10 kt. Partly 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.