For More Weather Information:

New York, NY Local Forecast Office

7NM S Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:WSW wind 7 to 10 kt increasing to 12 to 15 kt in the afternoon. Mostly sunny. Seas around 2 ft.

      ⇑WSW 15kt
      2ft

    • Tonight

      Tonight:WNW wind 18 to 21 kt. Mostly clear. Seas around 3 ft.

      WNW 21kt
      3ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:NW wind 15 to 20 kt decreasing to 9 to 14 kt in the afternoon. Sunny. Seas 2 to 3 ft.

      NW 20kt⇓
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:WNW wind 5 to 9 kt becoming SW after midnight. Increasing clouds. Seas around 1 ft.

      SW 9kt
      1ft

    • Tuesday

      Tuesday:SSW wind 11 to 13 kt. A chance of rain after 1pm.   Seas around 2 ft.

      SSW 13kt
      2ft

    • Tuesday Night

      Tuesday Night:S wind 12 to 15 kt becoming SW after midnight. Rain.   Seas 3 to 4 ft.

      SSW 15kt
      3-4ft

    • Wednesday

      Wednesday:SSW wind 9 to 12 kt. A chance of rain.   Seas around 4 ft.

      SSW 12kt
      4ft

    • Wednesday Night

      Wednesday Night:SSW wind 12 to 17 kt becoming W 20 to 25 kt after midnight. A chance of rain.   Seas 4 to 5 ft.

      ⇑W 25kt
      4-5ft

    • Thanksgiving Day

      Thanksgiving Day:W wind 24 to 26 kt. Mostly sunny. Seas around 5 ft.

      W 26kt
      5ft


Associated Zone Forecast which includes this point

Last Update: 4:14 am EST Nov 23, 2025
Forecast Valid: 11am EST Nov 23, 2025-6pm EST Nov 29, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH

Today
WSW wind 7 to 10 kt increasing to 12 to 15 kt in the afternoon. Mostly sunny. Seas around 2 ft.
Tonight
WNW wind 18 to 21 kt. Mostly clear. Seas around 3 ft.
Monday
NW wind 15 to 20 kt decreasing to 9 to 14 kt in the afternoon. Sunny. Seas 2 to 3 ft.
Monday Night
WNW wind 5 to 9 kt becoming SW after midnight. Increasing clouds. Seas around 1 ft.
Tuesday
SSW wind 11 to 13 kt. A chance of rain after 1pm. Seas around 2 ft.
Tuesday Night
S wind 12 to 15 kt becoming SW after midnight. Rain. Seas 3 to 4 ft.
Wednesday
SSW wind 9 to 12 kt. A chance of rain. Seas around 4 ft.
Wednesday Night
SSW wind 12 to 17 kt becoming W 20 to 25 kt after midnight. A chance of rain. Seas 4 to 5 ft.
Thanksgiving Day
W wind 24 to 26 kt. Mostly sunny. Seas around 5 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: 40.61°N 73.18°W
Last Update: 4:14 am EST Nov 23, 2025
Forecast Valid: 11am EST Nov 23, 2025-6pm EST Nov 29, 2025
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data