For More Weather Information:

9NM SW Islip NY

[NOTICE]

Last Update: 8:44 am EDT Aug 27, 2026
Forecast Valid: 12pm EDT Aug 27, 2026-6pm EDT Sep 2, 2026

This Afternoon

S wind 12 to 14 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms, mainly between 2pm and 5pm. Seas 1 ft or less.

Tonight

S wind 6 to 11 kt becoming variable and less than 5 kt after midnight. A slight chance of showers and thunderstorms after 8pm. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SW around 6 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Saturday

N wind around 6 kt becoming variable and less than 5 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming SSW 5 to 9 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Sunday Night

SSW wind around 10 kt becoming WSW after midnight. Partly cloudy. Seas 1 ft or less.

Monday

WSW wind around 8 kt. Partly sunny. Seas 1 ft or less.

Winds and waves may be higher in and near tstms.

*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.