For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 4:50 am EST Dec 9, 2025
Forecast Valid: 5am EST Dec 9, 2025-6pm EST Dec 15, 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE

Today

N wind 5 to 9 kt becoming SSE in the morning. Increasing clouds. Seas 1 ft or less.

Tonight

SW wind 15 to 17 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

SW wind 17 to 22 kt. A chance of rain and snow before 10am, then rain likely. Seas 1 ft or less.

Wednesday Night

SW wind 16 to 21 kt becoming W after midnight. A chance of rain before 1am. Seas 1 ft or less.

Thursday

WNW wind 16 to 21 kt. Mostly sunny. Seas 1 ft or less.

Thursday Night

W wind 15 to 20 kt. Partly cloudy. Seas 1 ft or less.

Friday

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

Friday Night

WSW wind around 12 kt. A chance of rain and snow. Seas 1 ft or less.

Saturday

WSW wind 12 to 17 kt. Partly 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.