For More Weather Information:

12NM NW Islip NY

[NOTICE]

Last Update: 3:11 am EDT Aug 14, 2026
Forecast Valid: 10am EDT Aug 14, 2026-6pm EDT Aug 20, 2026

Today

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

Tonight

Variable winds less than 5 kt becoming NNE 5 to 7 kt in the evening. Partly cloudy. Seas 1 ft or less.

Saturday

NE wind 6 to 8 kt becoming N in the afternoon. Mostly sunny. Seas 1 ft or less.

Saturday Night

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

Sunday

Variable winds less than 5 kt becoming S 8 to 13 kt in the morning. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Sunday Night

S wind around 16 kt, with gusts as high as 23 kt. Showers, mainly after 8pm. Seas 1 ft or less.

Monday

WSW wind 6 to 10 kt becoming WNW in the afternoon. A chance of showers before 2pm. Seas 1 ft or less.

Monday Night

NNW wind around 7 kt. Mostly clear. Seas 1 ft or less.

Tuesday

N wind 5 to 7 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*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.