For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 12:34 pm EST Jan 21, 2026
Forecast Valid: 6pm EST Jan 21, 2026-6pm EST Jan 28, 2026

Tonight

SSW wind 14 to 16 kt. A chance of rain before 9pm, then a chance of snow between 9pm and 1am. Seas around 1 ft.

Thursday

WSW wind 14 to 17 kt. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

W wind 11 to 14 kt. Partly cloudy. Seas 1 to 2 ft.

Friday

W wind 11 to 14 kt increasing to 16 to 19 kt in the afternoon. Partly sunny. Seas 1 to 2 ft.

Friday Night

NW wind 18 to 23 kt. Partly cloudy. Seas around 2 ft.

Saturday

NNW wind 9 to 14 kt. Partly sunny. Seas 1 ft or less.

Saturday Night

N wind 9 to 11 kt. Snow likely after 1am. Seas 1 ft or less.

Sunday

NE wind 14 to 17 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 27 kt. Snow. Seas 1 ft or less.

Sunday Night

NE wind 15 to 20 kt, with gusts as high as 28 kt. Snow. Seas around 1 ft.

*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.