For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 2:28 am EDT Aug 8, 2026
Forecast Valid: 10am EDT Aug 8, 2026-6pm EDT Aug 14, 2026

Today

SW wind 9 to 11 kt. A slight chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

Tonight

WSW wind 7 to 9 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Sunday

W wind 7 to 10 kt. Mostly sunny. Seas 1 ft or less.

Sunday Night

W wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Sunny. Seas 1 ft or less.

Monday Night

SSW wind 9 to 11 kt becoming WSW after midnight. Partly cloudy. Seas 1 ft or less.

Tuesday

W wind 8 to 11 kt. A chance of showers after 2pm. Seas 1 ft or less.

Tuesday Night

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

Wednesday

NNW wind 5 to 9 kt becoming SW in the afternoon. Partly sunny. 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.