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New York, NY Local Forecast Office

15NM WSW Islip NY

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:ESE wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

      ESE 10kt⇓
      < 1ft

    • Sunday

      Sunday:NE wind 5 to 10 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.

      SE 10kt
      < 1ft

    • Sunday Night

      Sunday Night:SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

      SSE 6kt⇓
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming S 6 to 11 kt in the morning. Sunny. Seas 1 ft or less.

      ⇑S 11kt
      < 1ft

    • Monday Night

      Monday Night:S wind 10 to 12 kt. A chance of showers. Seas 1 ft or less.

      S 12kt
      < 1ft

    • Tuesday

      Tuesday:S wind 10 to 13 kt increasing to 13 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Showers likely, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      ⇑S 16kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SE wind 11 to 14 kt, with gusts as high as 21 kt. Showers and possibly a thunderstorm before 2am, then a chance of showers. Seas 1 ft or less.

      SE 14kt
      < 1ft

    • Wednesday

      Wednesday:ENE wind around 13 kt. A chance of showers. Seas 1 ft or less.

      ENE 13kt
      < 1ft

    • Wednesday Night

      Wednesday Night:NE wind 9 to 11 kt becoming N after midnight. A chance of showers. Seas 1 ft or less.

      NE 11kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:21 pm EDT Jul 25, 2026
Forecast Valid: 6pm EDT Jul 25, 2026-6pm EDT Aug 1, 2026

View Nearby Observations

Detailed Forecast


Tonight
ESE wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.
Sunday
NE wind 5 to 10 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.
Sunday Night
SSE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming S 6 to 11 kt in the morning. Sunny. Seas 1 ft or less.
Monday Night
S wind 10 to 12 kt. A chance of showers. Seas 1 ft or less.
Tuesday
S wind 10 to 13 kt increasing to 13 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Showers likely, then showers and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Tuesday Night
SE wind 11 to 14 kt, with gusts as high as 21 kt. Showers and possibly a thunderstorm before 2am, then a chance of showers. Seas 1 ft or less.
Wednesday
ENE wind around 13 kt. A chance of showers. Seas 1 ft or less.
Wednesday Night
NE wind 9 to 11 kt becoming N after midnight. A chance of showers. Seas 1 ft or less.

Winds and waves 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: 40.61°N 73.51°W
Last Update: 2:21 pm EDT Jul 25, 2026
Forecast Valid: 6pm EDT Jul 25, 2026-6pm EDT Aug 1, 2026
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