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18NM WSW Islip NY

[NOTICE]

Last Update: 12:59 am EST Jan 17, 2026
Forecast Valid: 2am EST Jan 17, 2026-6pm EST Jan 23, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Saturday

SSW wind 11 to 13 kt becoming WSW in the afternoon. A chance of rain and snow before 10am, then rain likely. Seas 1 ft or less.

Saturday Night

W wind 5 to 8 kt. A slight chance of rain before 7pm, then a chance of rain and snow after 4am. Seas 1 ft or less.

Sunday

W wind 5 to 8 kt. Snow likely, possibly mixed with rain, becoming all snow after 4pm. Seas 1 ft or less.

Sunday Night

WNW wind 9 to 11 kt. A slight chance of snow before 1am. Seas 1 ft or less.

M.L.King Day

WSW wind 12 to 15 kt increasing to 15 to 18 kt in the afternoon. Winds could gust as high as 24 kt. Mostly sunny. Seas 1 ft or less.

Monday Night

W wind 17 to 20 kt. Partly cloudy. Seas 1 ft or less.

Tuesday

W wind around 16 kt. Sunny. Seas 1 ft or less.

Tuesday Night

W wind 12 to 16 kt. Mostly clear. Seas 1 ft or less.

Wednesday

W wind 10 to 15 kt becoming SSW in the afternoon. 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.