For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 2:21 pm EDT Jul 25, 2026
Forecast Valid: 3pm EDT Jul 25, 2026-6pm EDT Aug 1, 2026

This Afternoon

E wind around 8 kt. Sunny. Seas 1 ft or less.

Tonight

SE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming E 5 to 8 kt in the afternoon. 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 S 5 to 8 kt in the afternoon. A slight chance of showers after 2pm. Seas 1 ft or less.

Monday Night

S wind 7 to 10 kt. A chance of showers after 8pm. Seas 1 ft or less.

Tuesday

S wind 8 to 13 kt. Showers likely, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.

Tuesday Night

SSE wind 10 to 12 kt becoming E after midnight. Showers and possibly a thunderstorm before 2am, then showers likely. Seas 1 ft or less.

Wednesday

NE wind around 11 kt. Showers likely, with thunderstorms also possible 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.