For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 5:01 am EDT Jul 11, 2026
Forecast Valid: 5am EDT Jul 11, 2026-6pm EDT Jul 17, 2026

Today

ENE wind around 8 kt. A chance of showers, with thunderstorms also possible after 2pm. Seas around 1 ft.

Tonight

Variable winds 5 kt or less. Mostly cloudy, then gradually becoming clear. Seas 1 ft or less.

Sunday

NE wind 5 to 7 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

Sunday Night

S 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 SSW 5 to 7 kt in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

SW wind around 11 kt. Mostly clear. Seas around 1 ft.

Tuesday

WSW wind around 10 kt. Sunny. Seas around 1 ft.

Tuesday Night

WSW wind around 12 kt. Mostly clear. Seas 1 to 2 ft.

Wednesday

W wind around 9 kt. Sunny. Seas around 1 ft.

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.