For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 6:02 am EST Feb 18, 2026
Forecast Valid: 6am EST Feb 18, 2026-6pm EST Feb 24, 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...

Today

SSW wind around 6 kt becoming E in the afternoon. Rain, mainly before 1pm. Areas of dense fog. Seas 3 to 4 ft.

Tonight

NE wind 6 to 9 kt increasing to 9 to 12 kt after midnight. Rain likely, mainly before 10pm. Areas of fog before 4am. Seas 3 to 4 ft.

Thursday

NE wind around 12 kt becoming E in the afternoon. A slight chance of rain after 1pm. Seas around 4 ft.

Thursday Night

E wind 10 to 15 kt. Rain likely, mainly after 1am. Seas 3 to 4 ft.

Friday

E wind 14 to 16 kt. Rain. Seas 3 to 4 ft.

Friday Night

NE wind 10 to 12 kt becoming NW after midnight. A chance of rain before 1am. Seas around 4 ft.

Saturday

NW wind around 10 kt becoming N in the afternoon. Partly sunny. Seas 3 to 4 ft.

Saturday Night

ENE wind 9 to 12 kt. A chance of rain and snow after 1am. Seas around 3 ft.

Sunday

ENE wind 14 to 18 kt. A chance of rain and snow before 1pm, then a chance of snow. Seas around 3 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.