For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 6:43 am EDT Jul 6, 2026
Forecast Valid: 8am EDT Jul 6, 2026-6pm EDT Jul 12, 2026

Today

E wind around 15 kt. Periods of showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas 1 ft or less.

Tonight

ENE wind 11 to 15 kt, with gusts as high as 21 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Tuesday

NNE wind around 12 kt. A chance of showers, with thunderstorms also possible after 2pm. Seas 1 ft or less.

Tuesday Night

NNE wind 9 to 11 kt. A slight chance of showers before 2am. Seas 1 ft or less.

Wednesday

NNE wind 6 to 8 kt becoming SSE in the afternoon. Mostly sunny. Seas 1 ft or less.

Wednesday Night

SSW wind around 7 kt. Partly cloudy. Seas 1 ft or less.

Thursday

WSW wind 6 to 9 kt becoming SSW 9 to 12 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Thursday Night

SW wind 10 to 13 kt decreasing to 7 to 10 kt after midnight. A chance of showers. Seas 1 ft or less.

Friday

SW wind 6 to 9 kt. A chance of showers and thunderstorms after 2pm. 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.