For More Weather Information:

New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SW wind around 11 kt. Sunny. Seas around 2 ft.

      SW 11kt
      2ft

    • Tonight

      Tonight:WSW wind 10 to 13 kt decreasing to 7 to 10 kt after midnight. Mostly clear. Seas around 2 ft.

      WSW 13kt⇓
      2ft

    • Sunday

      Sunday:S wind 8 to 13 kt increasing to 14 to 19 kt in the afternoon. Increasing clouds. Seas 2 to 3 ft.

      ⇑S 19kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday Night

      Sunday Night:S wind 19 to 22 kt becoming SW 15 to 18 kt after midnight. Winds could gust as high as 29 kt. Showers and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a slight chance of showers after 2am.   Seas 4 to 5 ft.

      S 22kt⇓
      4-5ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:W wind 11 to 15 kt. Mostly sunny. Seas around 3 ft.

      W 15kt
      3ft

    • Monday Night

      Monday Night:WNW wind 6 to 10 kt becoming NNW after midnight. Partly cloudy. Seas around 3 ft.

      WNW 10kt
      3ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming S 7 to 12 kt in the morning. Mostly sunny. Seas around 2 ft.

      ⇑S 12kt
      2ft

    • Tuesday Night

      Tuesday Night:S wind 9 to 12 kt decreasing to 6 to 9 kt after midnight. Partly cloudy. Seas 2 to 3 ft.

      S 12kt⇓
      2-3ft

    • Wednesday

      Wednesday:SSE wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. A chance of showers.   Seas 2 to 3 ft.

      ⇑SSE 13kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 2:23 pm EDT Jun 13, 2026
Forecast Valid: 3pm EDT Jun 13, 2026-6pm EDT Jun 20, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH

This Afternoon
SW wind around 11 kt. Sunny. Seas around 2 ft.
Tonight
WSW wind 10 to 13 kt decreasing to 7 to 10 kt after midnight. Mostly clear. Seas around 2 ft.
Sunday
S wind 8 to 13 kt increasing to 14 to 19 kt in the afternoon. Increasing clouds. Seas 2 to 3 ft.
Sunday Night
S wind 19 to 22 kt becoming SW 15 to 18 kt after midnight. Winds could gust as high as 29 kt. Showers and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a slight chance of showers after 2am. Seas 4 to 5 ft.
Monday
W wind 11 to 15 kt. Mostly sunny. Seas around 3 ft.
Monday Night
WNW wind 6 to 10 kt becoming NNW after midnight. Partly cloudy. Seas around 3 ft.
Tuesday
Variable winds less than 5 kt becoming S 7 to 12 kt in the morning. Mostly sunny. Seas around 2 ft.
Tuesday Night
S wind 9 to 12 kt decreasing to 6 to 9 kt after midnight. Partly cloudy. Seas 2 to 3 ft.
Wednesday
SSE wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. A chance of showers. 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: 2:23 pm EDT Jun 13, 2026
Forecast Valid: 3pm EDT Jun 13, 2026-6pm EDT Jun 20, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data