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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:S wind around 17 kt. Sunny. Seas around 3 ft.

      S 17kt
      3ft

    • Tonight

      Tonight:SW wind 13 to 18 kt. Partly cloudy. Seas 3 to 4 ft.

      SW 18kt
      3-4ft

    • Wednesday

      Wednesday:S wind 10 to 15 kt. A chance of showers, with thunderstorms also possible after 5pm.   Seas 2 to 3 ft.

      S 15kt
      2-3ft

    • Wednesday Night

      Wednesday Night:SSW wind 13 to 17 kt. A chance of showers and thunderstorms.   Seas around 4 ft.

      SSW 17kt
      4ft

    • Thursday

      Thursday:SW wind 9 to 12 kt. A chance of showers and thunderstorms after 2pm.   Seas around 3 ft.

      SW 12kt
      3ft

    • Thursday Night

      Thursday Night:WSW wind 7 to 9 kt. Showers and thunderstorms likely.   Seas around 3 ft.

      WSW 9kt
      3ft

    • Friday

      Friday:W wind 6 to 11 kt becoming SSW in the afternoon. A chance of showers before 8am.   Seas around 2 ft.

      SSW 11kt
      2ft

    • Friday Night

      Friday Night:S wind 7 to 10 kt becoming W after midnight. A chance of showers and thunderstorms before 2am.   Seas around 2 ft.

      S 10kt
      2ft

    • Saturday

      Saturday:NNW wind 7 to 9 kt becoming W in the afternoon. Partly sunny. Seas around 2 ft.

      W 9kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 2:45 pm EDT Jun 9, 2026
Forecast Valid: 3pm EDT Jun 9, 2026-6pm EDT Jun 16, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
S wind around 17 kt. Sunny. Seas around 3 ft.
Tonight
SW wind 13 to 18 kt. Partly cloudy. Seas 3 to 4 ft.
Wednesday
S wind 10 to 15 kt. A chance of showers, with thunderstorms also possible after 5pm. Seas 2 to 3 ft.
Wednesday Night
SSW wind 13 to 17 kt. A chance of showers and thunderstorms. Seas around 4 ft.
Thursday
SW wind 9 to 12 kt. A chance of showers and thunderstorms after 2pm. Seas around 3 ft.
Thursday Night
WSW wind 7 to 9 kt. Showers and thunderstorms likely. Seas around 3 ft.
Friday
W wind 6 to 11 kt becoming SSW in the afternoon. A chance of showers before 8am. Seas around 2 ft.
Friday Night
S wind 7 to 10 kt becoming W after midnight. A chance of showers and thunderstorms before 2am. Seas around 2 ft.
Saturday
NNW wind 7 to 9 kt becoming W in the afternoon. Partly sunny. Seas around 2 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.
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ABOUT THIS FORECAST

Point Forecast: 40.53°N 73.44°W
Last Update: 2:45 pm EDT Jun 9, 2026
Forecast Valid: 3pm EDT Jun 9, 2026-6pm EDT Jun 16, 2026
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