For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 5:50 pm EST Jan 12, 2026
Forecast Valid: 11pm EST Jan 12, 2026-6pm EST Jan 19, 2026

Overnight

W wind around 13 kt. Mostly clear. Seas 1 ft or less.

Tuesday

W wind 10 to 12 kt becoming SSW in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

SW wind 12 to 15 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

SW wind 8 to 11 kt. A slight chance of showers before 1pm. Seas 1 ft or less.

Wednesday Night

S wind 5 to 8 kt becoming W after midnight. A chance of showers, mainly after 1am. Seas 1 ft or less.

Thursday

W wind 10 to 15 kt. A chance of rain before 1pm. Seas 1 ft or less.

Thursday Night

WNW wind around 16 kt. Partly cloudy. Seas 1 ft or less.

Friday

WNW wind 13 to 15 kt. Mostly sunny. Seas 1 ft or less.

Friday Night

SW wind 10 to 13 kt. Mostly 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.