For More Weather Information:

15NM SW Islip NY

[NOTICE]

Last Update: 8:21 pm EDT Jun 27, 2026
Forecast Valid: 8pm EDT Jun 27, 2026-6pm EDT Jul 4, 2026

Tonight

Variable winds 5 kt or less. A slight chance of showers. Seas around 2 ft.

Sunday

NE wind 6 to 10 kt becoming E in the afternoon. Cloudy, then gradually becoming mostly sunny. Seas around 2 ft.

Sunday Night

ESE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas around 2 ft.

Monday

Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Cloudy through mid morning, then gradual clearing. Seas around 2 ft.

Monday Night

SSW wind 6 to 9 kt. Partly cloudy. Seas around 2 ft.

Tuesday

SW wind 7 to 10 kt becoming S 12 to 17 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

Tuesday Night

SW wind 18 to 21 kt decreasing to 15 to 18 kt after midnight. Winds could gust as high as 27 kt. Partly cloudy. Seas 4 to 5 ft.

Wednesday

SSW wind 12 to 16 kt. Mostly sunny. Seas around 3 ft.

Wednesday Night

SSW wind 15 to 18 kt becoming W 10 to 13 kt after midnight. Mostly clear. Seas 3 to 4 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.