For More Weather Information:

New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSW wind 14 to 17 kt becoming WSW 9 to 12 kt after midnight. A slight chance of showers after 5am.   Seas 3 to 4 ft.

      SSW 17kt⇓
      3-4ft

    • Friday

      Friday:W wind around 8 kt becoming WSW in the afternoon. A slight chance of showers before 11am, then a chance of showers after 2pm.   Seas around 3 ft.

      W 8kt
      3ft

    • Friday Night

      Friday Night:N wind 7 to 9 kt becoming E in the evening. A chance of showers before 8pm.   Seas 2 to 3 ft.

      E 9kt
      2-3ft

    • Saturday

      Saturday:ENE wind around 10 kt becoming ESE in the afternoon. Mostly cloudy. Seas around 2 ft.

      E 10kt
      2ft

    • Saturday Night

      Saturday Night:SE wind 7 to 9 kt. A chance of showers after 2am.   Seas around 2 ft.

      SE 9kt
      2ft

    • Sunday

      Sunday:S wind 11 to 16 kt becoming WNW in the afternoon. Showers, mainly after 8am.   Seas 2 to 3 ft.

      WNW 16kt
      2-3ft

    • Sunday Night

      Sunday Night:WNW wind 16 to 19 kt. Showers, mainly before 8pm.   Seas around 3 ft.

      WNW 19kt
      3ft

    • Monday

      Monday:WNW wind 16 to 19 kt. Mostly sunny. Seas around 3 ft.

      WNW 19kt
      3ft

    • Monday Night

      Monday Night:NNW wind 15 to 19 kt. Partly cloudy. Seas 2 to 3 ft.

      NNW 19kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 2:57 pm EDT Apr 16, 2026
Forecast Valid: 5pm EDT Apr 16, 2026-6pm EDT Apr 23, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSW wind 14 to 17 kt becoming WSW 9 to 12 kt after midnight. A slight chance of showers after 5am. Seas 3 to 4 ft.
Friday
W wind around 8 kt becoming WSW in the afternoon. A slight chance of showers before 11am, then a chance of showers after 2pm. Seas around 3 ft.
Friday Night
N wind 7 to 9 kt becoming E in the evening. A chance of showers before 8pm. Seas 2 to 3 ft.
Saturday
ENE wind around 10 kt becoming ESE in the afternoon. Mostly cloudy. Seas around 2 ft.
Saturday Night
SE wind 7 to 9 kt. A chance of showers after 2am. Seas around 2 ft.
Sunday
S wind 11 to 16 kt becoming WNW in the afternoon. Showers, mainly after 8am. Seas 2 to 3 ft.
Sunday Night
WNW wind 16 to 19 kt. Showers, mainly before 8pm. Seas around 3 ft.
Monday
WNW wind 16 to 19 kt. Mostly sunny. Seas around 3 ft.
Monday Night
NNW wind 15 to 19 kt. Partly cloudy. Seas 2 to 3 ft.

*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...

ABOUT THIS FORECAST

Point Forecast: 40.53°N 73.44°W
Last Update: 2:57 pm EDT Apr 16, 2026
Forecast Valid: 5pm EDT Apr 16, 2026-6pm EDT Apr 23, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data