For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 12:20 pm EDT Oct 21, 2026
Forecast Valid: 1pm EDT Oct 21, 2026-6pm EDT Oct 27, 2026

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

This Afternoon

NNE wind around 17 kt, with gusts as high as 25 kt. Partly sunny. Seas around 1 ft.

Tonight

NNE wind around 18 kt, with gusts as high as 24 kt. Mostly cloudy. Seas around 1 ft.

Thursday

NNW wind 13 to 16 kt. Sunny. Seas around 1 ft.

Thursday Night

N wind 13 to 18 kt. Clear. Seas around 1 ft.

Friday

N wind 11 to 14 kt decreasing to 7 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

Friday Night

NNE wind 5 to 7 kt. Mostly clear. Seas 1 ft or less.

Saturday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Clear. Seas 1 ft or less.

Sunday

Variable winds 5 kt or less. 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.