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 decreasing to 8 to 11 kt after midnight. Increasing clouds. Seas around 3 ft.

      SSW 17kt⇓
      3ft

    • Wednesday

      Wednesday:SE wind 7 to 11 kt. Mostly sunny. Seas around 2 ft.

      SE 11kt
      2ft

    • Wednesday Night

      Wednesday Night:SSE wind around 10 kt. Increasing clouds. Seas around 3 ft.

      SSE 10kt
      3ft

    • Thursday

      Thursday:S wind 18 to 23 kt, with gusts as high as 32 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2pm.   Seas 5 to 6 ft.

      S 23kt
      5-6ft

    • Thursday Night

      Thursday Night:SW wind 17 to 20 kt becoming W 14 to 17 kt after midnight. Winds could gust as high as 27 kt. A chance of showers and thunderstorms before 8pm.   Seas 5 to 6 ft.

      SW 20kt⇓
      5-6ft

    • Juneteenth

      Juneteenth:SW wind 12 to 14 kt. Partly sunny. Seas around 4 ft.

      SW 14kt
      4ft

    • Friday Night

      Friday Night:WNW wind 12 to 14 kt. Mostly clear. Seas 3 to 4 ft.

      WNW 14kt
      3-4ft

    • Saturday

      Saturday:W wind around 16 kt. Sunny. Seas around 3 ft.

      W 16kt
      3ft

    • Saturday Night

      Saturday Night:WNW wind 12 to 14 kt. Mostly clear. Seas 2 to 3 ft.

      WNW 14kt
      2-3ft


Associated Zone Forecast which includes this point

Last Update: 3:07 pm EDT Jun 16, 2026
Forecast Valid: 8pm EDT Jun 16, 2026-6pm EDT Jun 23, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSW wind 14 to 17 kt decreasing to 8 to 11 kt after midnight. Increasing clouds. Seas around 3 ft.
Wednesday
SE wind 7 to 11 kt. Mostly sunny. Seas around 2 ft.
Wednesday Night
SSE wind around 10 kt. Increasing clouds. Seas around 3 ft.
Thursday
S wind 18 to 23 kt, with gusts as high as 32 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Seas 5 to 6 ft.
Thursday Night
SW wind 17 to 20 kt becoming W 14 to 17 kt after midnight. Winds could gust as high as 27 kt. A chance of showers and thunderstorms before 8pm. Seas 5 to 6 ft.
Juneteenth
SW wind 12 to 14 kt. Partly sunny. Seas around 4 ft.
Friday Night
WNW wind 12 to 14 kt. Mostly clear. Seas 3 to 4 ft.
Saturday
W wind around 16 kt. Sunny. Seas around 3 ft.
Saturday Night
WNW wind 12 to 14 kt. Mostly clear. 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...

ABOUT THIS FORECAST

Point Forecast: 40.53°N 73.44°W
Last Update: 3:07 pm EDT Jun 16, 2026
Forecast Valid: 8pm EDT Jun 16, 2026-6pm EDT Jun 23, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data