For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 2:19 pm EDT Sep 21, 2026
Forecast Valid: 10pm EDT Sep 21, 2026-6pm EDT Sep 28, 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...

Tonight

ENE wind 12 to 14 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday

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

Tuesday Night

NE wind 20 to 22 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

ENE wind 20 to 22 kt. Partly sunny. Seas 1 ft or less.

Wednesday Night

NE wind around 22 kt. Partly cloudy. Seas 1 ft or less.

Thursday

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

Thursday Night

NE wind around 19 kt, with gusts as high as 27 kt. A chance of showers after 2am. Seas 1 ft or less.

Friday

N wind 19 to 22 kt, with gusts as high as 35 kt. A chance of showers. Seas 1 ft or less.

Friday Night

N wind 19 to 22 kt, with gusts as high as 32 kt. A chance of showers. 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.