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

Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

16NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:SSE wind around 11 kt. A slight chance of showers after 5pm. Seas around 2 ft.

      SSE 11kt
      2ft

    • Tonight

      Tonight:S wind around 13 kt. A slight chance of showers before 8pm. Seas 2 to 3 ft.

      S 13kt
      2-3ft

    • Thursday

      Thursday:S wind 18 to 21 kt, with gusts as high as 30 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas 4 ft building to 6 ft.

      S 21kt
      Waves Building6ft

    • Thursday Night

      Thursday Night:SW wind 14 to 17 kt becoming W 11 to 14 kt after midnight. Winds could gust as high as 24 kt. A slight chance of showers before 8pm. Seas 6 ft subsiding to 4 ft.

      SW 17kt⇓
      6ftWaves Subsiding

    • Juneteenth

      Juneteenth:W wind 10 to 12 kt becoming SW in the afternoon. Mostly sunny. Seas 3 to 4 ft.

      WSW 12kt
      3-4ft

    • Friday Night

      Friday Night:WNW wind 11 to 13 kt. Mostly clear. Seas around 3 ft.

      WNW 13kt
      3ft

    • Saturday

      Saturday:W wind around 13 kt. Sunny. Seas around 2 ft.

      W 13kt
      2ft

    • Saturday Night

      Saturday Night:WNW wind 7 to 12 kt. Mostly clear. Seas around 2 ft.

      WNW 12kt
      2ft

    • Sunday

      Sunday:WNW wind 8 to 13 kt becoming SW in the afternoon. Sunny. Seas around 2 ft.

      SW 13kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 2:20 pm EDT Jun 17, 2026
Forecast Valid: 3pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH

This Afternoon
SSE wind around 11 kt. A slight chance of showers after 5pm. Seas around 2 ft.
Tonight
S wind around 13 kt. A slight chance of showers before 8pm. Seas 2 to 3 ft.
Thursday
S wind 18 to 21 kt, with gusts as high as 30 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas 4 ft building to 6 ft.
Thursday Night
SW wind 14 to 17 kt becoming W 11 to 14 kt after midnight. Winds could gust as high as 24 kt. A slight chance of showers before 8pm. Seas 6 ft subsiding to 4 ft.
Juneteenth
W wind 10 to 12 kt becoming SW in the afternoon. Mostly sunny. Seas 3 to 4 ft.
Friday Night
WNW wind 11 to 13 kt. Mostly clear. Seas around 3 ft.
Saturday
W wind around 13 kt. Sunny. Seas around 2 ft.
Saturday Night
WNW wind 7 to 12 kt. Mostly clear. Seas around 2 ft.
Sunday
WNW wind 8 to 13 kt becoming SW in the afternoon. Sunny. Seas around 2 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...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 40.59°N 73.51°W
Last Update: 2:20 pm EDT Jun 17, 2026
Forecast Valid: 3pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data