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

For More Weather Information:

New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:W wind around 8 kt becoming WSW in the afternoon. A chance of showers, with thunderstorms also possible after 2pm. Seas around 3 ft.

      W 8kt
      3ft

    • Tonight

      Tonight:ENE wind around 9 kt. Scattered showers before 8pm. Seas 2 to 3 ft.

      ENE 9kt
      2-3ft

    • Saturday

      Saturday:ENE wind 7 to 10 kt becoming ESE in the afternoon. Partly sunny. Seas around 2 ft.

      ESE 10kt
      2ft

    • Saturday Night

      Saturday Night:SE wind 8 to 10 kt. A chance of showers after 2am. Seas around 2 ft.

      SE 10kt
      2ft

    • Sunday

      Sunday:SSE wind 9 to 12 kt becoming WNW 13 to 16 kt in the afternoon. Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. Seas 2 to 3 ft.

      ⇑WNW 16kt
      2-3ft

    • Sunday Night

      Sunday Night:NW wind 15 to 17 kt. Showers, mainly before 8pm. Seas around 3 ft.

      NW 17kt
      3ft

    • Monday

      Monday:WNW wind 14 to 16 kt. Mostly sunny. Seas around 3 ft.

      WNW 16kt
      3ft

    • Monday Night

      Monday Night:NNW wind 15 to 17 kt. Partly cloudy. Seas around 2 ft.

      NNW 17kt
      2ft

    • Tuesday

      Tuesday:N wind 8 to 11 kt becoming SSW in the afternoon. Sunny. Seas around 2 ft.

      N 11kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 2:22 am EDT Apr 17, 2026
Forecast Valid: 7am EDT Apr 17, 2026-6pm EDT Apr 23, 2026

View Nearby Observations

Detailed Forecast


Today
W wind around 8 kt becoming WSW in the afternoon. A chance of showers, with thunderstorms also possible after 2pm. Seas around 3 ft.
Tonight
ENE wind around 9 kt. Scattered showers before 8pm. Seas 2 to 3 ft.
Saturday
ENE wind 7 to 10 kt becoming ESE in the afternoon. Partly sunny. Seas around 2 ft.
Saturday Night
SE wind 8 to 10 kt. A chance of showers after 2am. Seas around 2 ft.
Sunday
SSE wind 9 to 12 kt becoming WNW 13 to 16 kt in the afternoon. Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. Seas 2 to 3 ft.
Sunday Night
NW wind 15 to 17 kt. Showers, mainly before 8pm. Seas around 3 ft.
Monday
WNW wind 14 to 16 kt. Mostly sunny. Seas around 3 ft.
Monday Night
NNW wind 15 to 17 kt. Partly cloudy. Seas around 2 ft.
Tuesday
N wind 8 to 11 kt becoming SSW in the afternoon. Sunny. Seas around 2 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: 40.53°N 73.44°W
Last Update: 2:22 am EDT Apr 17, 2026
Forecast Valid: 7am EDT Apr 17, 2026-6pm EDT Apr 23, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data