For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 5:20 am EST Dec 27, 2025
Forecast Valid: 10am EST Dec 27, 2025-6pm EST Jan 2, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

Today

NNE wind 10 to 15 kt. Mostly cloudy. Seas 1 ft or less.

Tonight

N wind 5 to 7 kt. Partly cloudy. Seas 1 ft or less.

Sunday

NW wind 5 to 7 kt becoming WSW in the afternoon. Partly sunny. Seas 1 ft or less.

Sunday Night

SSW wind 8 to 12 kt. Rain. Seas 1 ft or less.

Monday

SSW wind 13 to 17 kt becoming WSW in the afternoon. Winds could gust as high as 28 kt. Rain. Seas 1 ft or less.

Monday Night

W wind 20 to 24 kt, with gusts as high as 32 kt. Partly cloudy. Seas 1 ft or less.

Tuesday

W wind 22 to 24 kt, with gusts as high as 31 kt. Partly sunny. Seas 1 ft or less.

Tuesday Night

W wind 17 to 21 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

WSW wind around 17 kt, with gusts as high as 23 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.