National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

For More Weather Information:

New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

    • Late Afternoon

      Late Afternoon:SW wind around 9 kt. A chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

      SW 9kt
      < 1ft

    • Tonight

      Tonight:NW wind 8 to 12 kt becoming N after midnight. Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and 2am. Seas 1 ft or less.

      N 12kt
      < 1ft

    • Saturday

      Saturday:N wind 8 to 12 kt becoming NE in the afternoon. Sunny. Seas 1 ft or less.

      N 12kt
      < 1ft

    • Saturday Night

      Saturday Night:ENE wind 5 to 7 kt becoming variable and less than 5 kt. Mostly clear. Seas 1 ft or less.

      ENE 7kt⇓
      < 1ft

    • Sunday

      Sunday:E wind 7 to 11 kt. A chance of showers after 2pm. Seas 1 ft or less.

      E 11kt
      < 1ft

    • Sunday Night

      Sunday Night:E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers before 2am. Seas 1 ft or less.

      E 7kt⇓
      < 1ft

    • Monday

      Monday:WNW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.

      ⇑WNW 11kt
      < 1ft

    • Monday Night

      Monday Night:NW wind 12 to 14 kt, with gusts as high as 20 kt. Clear. Seas 1 to 2 ft.

      NW 14kt
      1-2ft

    • Tuesday

      Tuesday:NW wind 7 to 9 kt. Sunny. Seas around 1 ft.

      NW 9kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 2:54 pm EDT Oct 2, 2026
Forecast Valid: 4pm EDT Oct 2, 2026-6pm EDT Oct 9, 2026

View Nearby Observations

Detailed Forecast


Late Afternoon
SW wind around 9 kt. A chance of showers and thunderstorms after 5pm. Seas 1 ft or less.
Tonight
NW wind 8 to 12 kt becoming N after midnight. Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and 2am. Seas 1 ft or less.
Saturday
N wind 8 to 12 kt becoming NE in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
ENE wind 5 to 7 kt becoming variable and less than 5 kt. Mostly clear. Seas 1 ft or less.
Sunday
E wind 7 to 11 kt. A chance of showers after 2pm. Seas 1 ft or less.
Sunday Night
E wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers before 2am. Seas 1 ft or less.
Monday
WNW wind 5 to 8 kt increasing to 8 to 11 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.
Monday Night
NW wind 12 to 14 kt, with gusts as high as 20 kt. Clear. Seas 1 to 2 ft.
Tuesday
NW wind 7 to 9 kt. Sunny. Seas around 1 ft.

Winds and seas may be higher in and near tstms.

*Notices:

  1. 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.
  2. 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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 40.91°N 73.39°W
Last Update: 2:54 pm EDT Oct 2, 2026
Forecast Valid: 4pm EDT Oct 2, 2026-6pm EDT Oct 9, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data