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Hazardous Weather Conditions

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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:SSW wind 14 to 17 kt becoming W 9 to 12 kt after midnight. Clear. Seas 3 to 4 ft.

      SSW 17kt⇓
      3-4ft

    • Friday

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

      ⇑SSW 13kt
      2-3ft

    • Friday Night

      Friday Night:SW wind 6 to 11 kt becoming W after midnight. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Seas 2 to 3 ft.

      SW 11kt
      2-3ft

    • Independence Day

      Independence Day:W wind 6 to 9 kt becoming SW 10 to 13 kt in the afternoon. Showers likely and possibly a thunderstorm after 2pm. Seas around 2 ft.

      ⇑SW 13kt
      2ft

    • Saturday Night

      Saturday Night:W wind 6 to 9 kt becoming N after midnight. Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Seas around 2 ft.

      W 9kt
      2ft

    • Sunday

      Sunday:NNE wind 6 to 9 kt becoming SE in the afternoon. A chance of showers after 2pm. Seas around 2 ft.

      SE 9kt
      2ft

    • Sunday Night

      Sunday Night:SE wind 5 to 8 kt. Showers likely, mainly after 2am. Seas around 2 ft.

      SE 8kt
      2ft

    • Monday

      Monday:E wind 10 to 15 kt. Showers likely. Seas 2 to 3 ft.

      E 15kt
      2-3ft

    • Monday Night

      Monday Night:E wind 13 to 16 kt. A chance of showers before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Seas around 3 ft.

      E 16kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 2:25 pm EDT Jul 2, 2026
Forecast Valid: 5pm EDT Jul 2, 2026-6pm EDT Jul 9, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSW wind 14 to 17 kt becoming W 9 to 12 kt after midnight. Clear. Seas 3 to 4 ft.
Friday
W wind 5 to 8 kt becoming SSW 10 to 13 kt in the afternoon. Sunny. Seas 2 to 3 ft.
Friday Night
SW wind 6 to 11 kt becoming W after midnight. A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Seas 2 to 3 ft.
Independence Day
W wind 6 to 9 kt becoming SW 10 to 13 kt in the afternoon. Showers likely and possibly a thunderstorm after 2pm. Seas around 2 ft.
Saturday Night
W wind 6 to 9 kt becoming N after midnight. Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Seas around 2 ft.
Sunday
NNE wind 6 to 9 kt becoming SE in the afternoon. A chance of showers after 2pm. Seas around 2 ft.
Sunday Night
SE wind 5 to 8 kt. Showers likely, mainly after 2am. Seas around 2 ft.
Monday
E wind 10 to 15 kt. Showers likely. Seas 2 to 3 ft.
Monday Night
E wind 13 to 16 kt. A chance of showers before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely 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: 2:25 pm EDT Jul 2, 2026
Forecast Valid: 5pm EDT Jul 2, 2026-6pm EDT Jul 9, 2026
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