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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:NW wind 11 to 13 kt becoming NNE after midnight. Partly cloudy. Seas around 3 ft.

      N 13kt
      3ft

    • Monday

      Monday:NE wind 7 to 11 kt becoming SSE in the afternoon. Sunny. Seas 2 to 3 ft.

      NE 11kt
      2-3ft

    • Monday Night

      Monday Night:S wind around 9 kt becoming WSW after midnight. Mostly clear. Seas around 2 ft.

      S 9kt
      2ft

    • Tuesday

      Tuesday:W wind 7 to 10 kt becoming SSW 11 to 14 kt in the afternoon. Sunny. Seas around 2 ft.

      ⇑SSW 14kt
      2ft

    • Tuesday Night

      Tuesday Night:SW wind 13 to 18 kt. Partly cloudy. Seas around 3 ft.

      SW 18kt
      3ft

    • Wednesday

      Wednesday:S wind 11 to 14 kt increasing to 15 to 18 kt in the afternoon. Partly sunny. Seas 2 to 3 ft.

      ⇑S 18kt
      2-3ft

    • Wednesday Night

      Wednesday Night:SW wind 18 to 21 kt decreasing to 15 to 18 kt after midnight. A chance of showers between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Seas around 4 ft.

      SW 21kt⇓
      4ft

    • Thursday

      Thursday:WSW wind 10 to 14 kt becoming SSW in the afternoon. A chance of thunderstorms before 8am. Seas around 3 ft.

      SSW 14kt
      3ft

    • Thursday Night

      Thursday Night:S wind 7 to 12 kt becoming WSW after midnight. Partly cloudy. Seas 3 to 4 ft.

      S 12kt
      3-4ft


Associated Zone Forecast which includes this point

Last Update: 3:03 pm EDT Jun 7, 2026
Forecast Valid: 6pm EDT Jun 7, 2026-6pm EDT Jun 14, 2026

View Nearby Observations

Detailed Forecast


Tonight
NW wind 11 to 13 kt becoming NNE after midnight. Partly cloudy. Seas around 3 ft.
Monday
NE wind 7 to 11 kt becoming SSE in the afternoon. Sunny. Seas 2 to 3 ft.
Monday Night
S wind around 9 kt becoming WSW after midnight. Mostly clear. Seas around 2 ft.
Tuesday
W wind 7 to 10 kt becoming SSW 11 to 14 kt in the afternoon. Sunny. Seas around 2 ft.
Tuesday Night
SW wind 13 to 18 kt. Partly cloudy. Seas around 3 ft.
Wednesday
S wind 11 to 14 kt increasing to 15 to 18 kt in the afternoon. Partly sunny. Seas 2 to 3 ft.
Wednesday Night
SW wind 18 to 21 kt decreasing to 15 to 18 kt after midnight. A chance of showers between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Seas around 4 ft.
Thursday
WSW wind 10 to 14 kt becoming SSW in the afternoon. A chance of thunderstorms before 8am. Seas around 3 ft.
Thursday Night
S wind 7 to 12 kt becoming WSW after midnight. Partly cloudy. Seas 3 to 4 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.
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ABOUT THIS FORECAST

Point Forecast: 40.53°N 73.44°W
Last Update: 3:03 pm EDT Jun 7, 2026
Forecast Valid: 6pm EDT Jun 7, 2026-6pm EDT Jun 14, 2026
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