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:Variable winds less than 5 kt becoming S 6 to 11 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

      ⇑S 11kt
      2-3ft

    • Tonight

      Tonight:S wind 12 to 16 kt. A chance of showers and thunderstorms between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Seas around 3 ft.

      S 16kt
      3ft

    • Friday

      Friday:S wind around 10 kt becoming SSW in the morning. Showers likely and possibly a thunderstorm before 8am, then a slight chance of showers between 8am and 11am. Seas around 2 ft.

      SSW 10kt
      2ft

    • Friday Night

      Friday Night:SW wind 5 to 10 kt becoming W after midnight. Showers likely after 2am. Seas around 2 ft.

      SW 10kt
      2ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming E 5 to 7 kt in the morning. Showers likely, mainly before 2pm. Seas around 2 ft.

      ⇑E 7kt
      2ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. A chance of showers before 8pm. Seas around 2 ft.

      Light Wind
      2ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming SE 5 to 7 kt in the afternoon. Mostly sunny. Seas around 2 ft.

      ⇑SE 7kt
      2ft

    • Sunday Night

      Sunday Night:SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas around 2 ft.

      SSE 6kt⇓
      2ft

    • Monday

      Monday:Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Mostly sunny. Seas around 2 ft.

      ⇑S 10kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 2:24 am EDT Jun 25, 2026
Forecast Valid: 6am EDT Jun 25, 2026-6pm EDT Jul 1, 2026

View Nearby Observations

Detailed Forecast


Today
Variable winds less than 5 kt becoming S 6 to 11 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.
Tonight
S wind 12 to 16 kt. A chance of showers and thunderstorms between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Seas around 3 ft.
Friday
S wind around 10 kt becoming SSW in the morning. Showers likely and possibly a thunderstorm before 8am, then a slight chance of showers between 8am and 11am. Seas around 2 ft.
Friday Night
SW wind 5 to 10 kt becoming W after midnight. Showers likely after 2am. Seas around 2 ft.
Saturday
Variable winds less than 5 kt becoming E 5 to 7 kt in the morning. Showers likely, mainly before 2pm. Seas around 2 ft.
Saturday Night
Variable winds 5 kt or less. A chance of showers before 8pm. Seas around 2 ft.
Sunday
Variable winds less than 5 kt becoming SE 5 to 7 kt in the afternoon. Mostly sunny. Seas around 2 ft.
Sunday Night
SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas around 2 ft.
Monday
Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Mostly 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: 2:24 am EDT Jun 25, 2026
Forecast Valid: 6am EDT Jun 25, 2026-6pm EDT Jul 1, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data