For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 12:43 pm EST Feb 25, 2026
Forecast Valid: 5pm EST Feb 25, 2026-6pm EST Mar 4, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST THURSDAY...

Tonight

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

Thursday

NW wind 5 to 8 kt. A slight chance of snow after 1pm. Seas 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Friday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Friday Night

S wind around 6 kt. Mostly clear. Seas 1 ft or less.

Saturday

S wind 5 to 7 kt becoming SW in the afternoon. Mostly sunny. Seas 1 ft or less.

Saturday Night

W wind 5 to 8 kt becoming NNW after midnight. Increasing clouds. Seas 1 ft or less.

Sunday

NNW wind 8 to 12 kt. Mostly cloudy. Seas 1 ft or less.

Sunday Night

NNW wind around 12 kt becoming NNE after midnight. Partly cloudy. 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.