For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 3:33 pm EST Jan 20, 2026
Forecast Valid: 4pm EST Jan 20, 2026-6pm EST Jan 27, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING...

Tonight

W wind 9 to 12 kt. Mostly clear. Seas 1 to 2 ft.

Wednesday

WSW wind 6 to 9 kt becoming S 10 to 13 kt in the afternoon. Increasing clouds. Seas 1 ft or less.

Wednesday Night

SW wind 12 to 15 kt. A slight chance of snow between 1am and 4am, then a slight chance of rain after 4am. Seas around 1 ft.

Thursday

WSW wind 12 to 15 kt. A slight chance of rain before 7am. Seas 1 to 2 ft.

Thursday Night

W wind 11 to 13 kt. Mostly cloudy. Seas 1 to 2 ft.

Friday

W wind 11 to 14 kt increasing to 15 to 18 kt in the afternoon. Partly sunny. Seas 1 ft or less.

Friday Night

NW wind 17 to 21 kt. Partly cloudy. Seas around 1 ft.

Saturday

NW wind 11 to 15 kt. Partly sunny. Seas 1 ft or less.

Saturday Night

NNW wind 10 to 13 kt becoming NNE after midnight. A chance of snow. 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.