For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 10:02 pm EDT Jul 11, 2026
Forecast Valid: 1am EDT Jul 12, 2026-6pm EDT Jul 18, 2026

Sunday

NE wind around 7 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.

Sunday Night

S wind 5 to 8 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 S 6 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

Monday Night

SSW wind 10 to 14 kt becoming WSW after midnight. Mostly clear. Seas 1 ft or less.

Tuesday

SW wind 9 to 14 kt. Sunny. Seas 1 ft or less.

Tuesday Night

WSW wind around 13 kt. Mostly clear. Seas 1 ft or less.

Wednesday

W wind around 12 kt. Sunny. Seas 1 ft or less.

Wednesday Night

NW wind 6 to 11 kt. Partly cloudy. Seas 1 ft or less.

Thursday

NW wind 5 to 9 kt becoming SW in the afternoon. Mostly sunny. 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.