For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 8:26 am EDT Sep 10, 2026
Forecast Valid: 8am EDT Sep 10, 2026-6pm EDT Sep 16, 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON...

Today

WSW wind 10 to 13 kt. Mostly sunny. Seas 1 ft or less.

Tonight

W wind around 6 kt becoming N after midnight. A slight chance of showers after 2am. Seas 1 ft or less.

Friday

N wind around 6 kt becoming WNW in the afternoon. A slight chance of showers before 8am. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Saturday

E wind 5 to 10 kt becoming SSE in the afternoon. Mostly sunny. Seas 1 ft or less.

Saturday Night

SSE wind 9 to 11 kt. A chance of showers. Seas 1 ft or less.

Sunday

SW wind around 9 kt. A chance of showers. Seas 1 ft or less.

Sunday Night

SW wind around 6 kt becoming WNW after midnight. Partly cloudy. Seas 1 ft or less.

Monday

NNW wind around 7 kt becoming W in the afternoon. Mostly 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.