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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:N wind 5 to 8 kt increasing to 9 to 12 kt after midnight. Showers, mainly before 8pm.   Seas around 2 ft.

      ⇑N 12kt
      2ft

    • Wednesday

      Wednesday:NNW wind 7 to 10 kt becoming SW in the afternoon. Sunny. Seas around 2 ft.

      NNW 10kt
      2ft

    • Wednesday Night

      Wednesday Night:SW wind 7 to 12 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 3 ft.

      SW 12kt⇓
      3ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Mostly sunny. Seas around 2 ft.

      ⇑S 10kt
      2ft

    • Thursday Night

      Thursday Night:S wind 14 to 16 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2am.   Seas around 3 ft.

      S 16kt
      3ft

    • Friday

      Friday:SSW wind around 11 kt. A chance of showers before 2pm.   Seas around 3 ft.

      SSW 11kt
      3ft

    • Friday Night

      Friday Night:SSW wind 6 to 11 kt. Showers likely, mainly after 2am.   Seas 2 to 3 ft.

      SSW 11kt
      2-3ft

    • Saturday

      Saturday:SSW wind around 6 kt becoming E in the morning. Showers likely.   Seas around 2 ft.

      ESE 6kt
      2ft

    • Saturday Night

      Saturday Night:SE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers.   Seas around 2 ft.

      SE 6kt⇓
      2ft


Associated Zone Forecast which includes this point

Last Update: 2:20 pm EDT Jun 23, 2026
Forecast Valid: 7pm EDT Jun 23, 2026-6pm EDT Jun 30, 2026

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Detailed Forecast


Tonight
N wind 5 to 8 kt increasing to 9 to 12 kt after midnight. Showers, mainly before 8pm. Seas around 2 ft.
Wednesday
NNW wind 7 to 10 kt becoming SW in the afternoon. Sunny. Seas around 2 ft.
Wednesday Night
SW wind 7 to 12 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 3 ft.
Thursday
Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Mostly sunny. Seas around 2 ft.
Thursday Night
S wind 14 to 16 kt. A slight chance of showers, then a chance of showers and thunderstorms after 2am. Seas around 3 ft.
Friday
SSW wind around 11 kt. A chance of showers before 2pm. Seas around 3 ft.
Friday Night
SSW wind 6 to 11 kt. Showers likely, mainly after 2am. Seas 2 to 3 ft.
Saturday
SSW wind around 6 kt becoming E in the morning. Showers likely. Seas around 2 ft.
Saturday Night
SE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers. 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: 2:20 pm EDT Jun 23, 2026
Forecast Valid: 7pm EDT Jun 23, 2026-6pm EDT Jun 30, 2026
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