For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 5:58 am EDT Jul 13, 2026
Forecast Valid: 6am EDT Jul 13, 2026-6pm EDT Jul 19, 2026

Today

Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

Tonight

SSW wind around 11 kt. Clear. Seas 1 ft or less.

Tuesday

WSW wind 9 to 12 kt increasing to 12 to 15 kt in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

WSW wind 13 to 15 kt. Mostly clear. Seas around 1 ft.

Wednesday

W wind around 10 kt. Sunny. Seas 1 ft or less.

Wednesday Night

WNW wind 8 to 11 kt decreasing to 5 to 8 kt after midnight. Mostly cloudy. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming W 5 to 8 kt in the morning. Mostly sunny. Seas 1 ft or less.

Thursday Night

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

Friday

NW wind around 6 kt. 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.