For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 10:02 pm EDT Jul 11, 2026
Forecast Valid: 10pm EDT Jul 11, 2026-6pm EDT Jul 18, 2026

Tonight

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Sunday

NE wind around 6 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 8 kt in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

SW wind 9 to 11 kt. Mostly clear. Seas 1 ft or less.

Tuesday

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

Tuesday Night

WSW wind around 13 kt, with gusts as high as 20 kt. Mostly clear. Seas 1 ft or less.

Wednesday

W wind around 11 kt. Sunny. Seas 1 ft or less.

Wednesday Night

WNW wind 6 to 10 kt. Partly cloudy. Seas 1 ft or less.

*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.