For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 4:34 pm EDT Jun 18, 2026
Forecast Valid: 5pm EDT Jun 18, 2026-6pm EDT Jun 25, 2026

...GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING...

Tonight

SW wind 18 to 21 kt becoming W 13 to 16 kt in the evening. Winds could gust as high as 35 kt. Increasing clouds. Seas around 1 ft.

Juneteenth

W wind 10 to 14 kt, with gusts as high as 24 kt. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.

Friday Night

WNW wind 10 to 13 kt, with gusts as high as 21 kt. Clear. Seas 1 ft or less.

Saturday

WNW wind around 17 kt, with gusts as high as 28 kt. Sunny. Seas around 1 ft.

Saturday Night

WNW wind 7 to 9 kt. Mostly clear. Seas 1 ft or less.

Sunday

W wind around 7 kt. Sunny. Seas 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming SE 8 to 13 kt in the morning. Winds could gust as high as 21 kt. Showers. Seas 1 ft or less.

Monday Night

SSE wind 13 to 16 kt becoming SW after midnight. Winds could gust as high as 22 kt. Showers. Seas around 1 ft.

*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.