For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 8:49 pm EDT Aug 7, 2026
Forecast Valid: 12am EDT Aug 8, 2026-6pm EDT Aug 14, 2026

Overnight

Variable winds 5 kt or less. A slight chance of showers before 2am. Seas 1 ft or less.

Saturday

WSW wind around 8 kt. A chance of showers and thunderstorms, mainly after 5pm. Seas 1 ft or less.

Saturday Night

SSW wind around 7 kt becoming WSW after midnight. A chance of showers and thunderstorms before 11pm. Seas 1 ft or less.

Sunday

W wind around 7 kt. Sunny. Seas 1 ft or less.

Sunday Night

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

Monday

Variable winds less than 5 kt becoming SSW around 6 kt in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

SSW wind 5 to 7 kt becoming W after midnight. Partly cloudy. Seas 1 ft or less.

Tuesday

W wind 6 to 8 kt. A chance of showers. Seas 1 ft or less.

Tuesday Night

W wind 5 to 7 kt. A chance of showers. Seas 1 ft or less.

Winds and seas 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.