For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 2:37 am EDT Jul 1, 2026
Forecast Valid: 12pm EDT Jul 1, 2026-6pm EDT Jul 7, 2026

This Afternoon

SSW wind 8 to 11 kt. Sunny. Seas 1 ft or less.

Tonight

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

Thursday

SW wind 5 to 8 kt. Sunny. Seas 1 ft or less.

Thursday Night

SSW wind 5 to 10 kt becoming W after midnight. Clear. Seas 1 ft or less.

Friday

W wind 5 to 7 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Friday Night

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

Independence Day

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

Saturday Night

WSW wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming SW around 6 kt in the morning. 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.