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]

    • Friday

      Friday:WSW wind around 9 kt. A chance of showers and thunderstorms, mainly after 5pm. Seas around 2 ft.

      WSW 9kt
      2ft

    • Friday Night

      Friday Night:WNW wind 5 to 8 kt becoming variable and less than 5 kt. A chance of showers and thunderstorms before 2am, then a slight chance of showers. Patchy fog after 11pm. Seas around 2 ft.

      WNW 8kt⇓
      2ft

    • Saturday

      Saturday:NE wind 7 to 9 kt becoming E in the afternoon. A slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.

      NE 9kt
      2ft

    • Saturday Night

      Saturday Night:E wind around 6 kt becoming variable and less than 5 kt. Partly cloudy. Seas around 2 ft.

      E 6kt⇓
      2ft

    • Sunday

      Sunday:NE wind 6 to 8 kt becoming SE in the afternoon. Sunny. Seas around 2 ft.

      NE 8kt
      2ft

    • Sunday Night

      Sunday Night:SSE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 2 ft.

      SSE 8kt⇓
      2ft

    • Monday

      Monday:Variable winds less than 5 kt becoming S 8 to 13 kt in the morning. Sunny. Seas around 2 ft.

      ⇑S 13kt
      2ft

    • Monday Night

      Monday Night:SW wind 13 to 16 kt. Mostly clear. Seas 3 to 4 ft.

      SW 16kt
      3-4ft

    • Tuesday

      Tuesday:WSW wind 11 to 15 kt becoming SSW in the afternoon. Sunny. Seas 2 to 3 ft.

      SSW 15kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 2:34 am EDT Jul 10, 2026
Forecast Valid: 4am EDT Jul 10, 2026-6pm EDT Jul 16, 2026

View Nearby Observations

Detailed Forecast


Friday
WSW wind around 9 kt. A chance of showers and thunderstorms, mainly after 5pm. Seas around 2 ft.
Friday Night
WNW wind 5 to 8 kt becoming variable and less than 5 kt. A chance of showers and thunderstorms before 2am, then a slight chance of showers. Patchy fog after 11pm. Seas around 2 ft.
Saturday
NE wind 7 to 9 kt becoming E in the afternoon. A slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Saturday Night
E wind around 6 kt becoming variable and less than 5 kt. Partly cloudy. Seas around 2 ft.
Sunday
NE wind 6 to 8 kt becoming SE in the afternoon. Sunny. Seas around 2 ft.
Sunday Night
SSE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 2 ft.
Monday
Variable winds less than 5 kt becoming S 8 to 13 kt in the morning. Sunny. Seas around 2 ft.
Monday Night
SW wind 13 to 16 kt. Mostly clear. Seas 3 to 4 ft.
Tuesday
WSW wind 11 to 15 kt becoming SSW in the afternoon. Sunny. Seas 2 to 3 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: 2:34 am EDT Jul 10, 2026
Forecast Valid: 4am EDT Jul 10, 2026-6pm EDT Jul 16, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data