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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:S wind 6 to 11 kt becoming SW after midnight. Mostly clear. Seas around 2 ft.

      S 11kt
      2ft

    • Thursday

      Thursday:WSW wind 6 to 9 kt becoming S 10 to 13 kt in the afternoon. Sunny. Seas around 2 ft.

      ⇑S 13kt
      2ft

    • Thursday Night

      Thursday Night:SSW wind 12 to 15 kt becoming WSW 9 to 12 kt after midnight. Partly cloudy. Seas around 3 ft.

      SSW 15kt⇓
      3ft

    • Friday

      Friday:W wind 5 to 8 kt becoming SSW 10 to 13 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.

      ⇑SSW 13kt
      2-3ft

    • Friday Night

      Friday Night:SW wind 12 to 15 kt. Partly cloudy. Seas around 3 ft.

      SW 15kt
      3ft

    • Saturday

      Saturday:SSW wind 10 to 13 kt increasing to 16 to 19 kt in the afternoon. Mostly sunny. Seas 3 to 4 ft.

      ⇑SSW 19kt
      3-4ft

    • Saturday Night

      Saturday Night:SW wind 15 to 20 kt decreasing to 9 to 14 kt after midnight. A chance of showers after 2am. Seas 4 to 5 ft.

      SW 20kt⇓
      4-5ft

    • Sunday

      Sunday:W wind 9 to 11 kt becoming SSE in the afternoon. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 3 to 4 ft.

      S 11kt
      3-4ft

    • Sunday Night

      Sunday Night:NE wind 10 to 13 kt increasing to 13 to 16 kt after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Seas around 3 ft.

      ⇑NE 16kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 7:29 pm EDT Jun 3, 2026
Forecast Valid: 7pm EDT Jun 3, 2026-6pm EDT Jun 10, 2026

View Nearby Observations

Detailed Forecast


Tonight
S wind 6 to 11 kt becoming SW after midnight. Mostly clear. Seas around 2 ft.
Thursday
WSW wind 6 to 9 kt becoming S 10 to 13 kt in the afternoon. Sunny. Seas around 2 ft.
Thursday Night
SSW wind 12 to 15 kt becoming WSW 9 to 12 kt after midnight. Partly cloudy. Seas around 3 ft.
Friday
W wind 5 to 8 kt becoming SSW 10 to 13 kt in the afternoon. Mostly sunny. Seas 2 to 3 ft.
Friday Night
SW wind 12 to 15 kt. Partly cloudy. Seas around 3 ft.
Saturday
SSW wind 10 to 13 kt increasing to 16 to 19 kt in the afternoon. Mostly sunny. Seas 3 to 4 ft.
Saturday Night
SW wind 15 to 20 kt decreasing to 9 to 14 kt after midnight. A chance of showers after 2am. Seas 4 to 5 ft.
Sunday
W wind 9 to 11 kt becoming SSE in the afternoon. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 3 to 4 ft.
Sunday Night
NE wind 10 to 13 kt increasing to 13 to 16 kt after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Seas around 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.
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ABOUT THIS FORECAST

Point Forecast: 40.53°N 73.44°W
Last Update: 7:29 pm EDT Jun 3, 2026
Forecast Valid: 7pm EDT Jun 3, 2026-6pm EDT Jun 10, 2026
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