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New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:WSW wind 13 to 18 km/h becoming SSW in the afternoon. A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Seas around 1 m.

      SSW 18km/h
      1m

    • Tonight

      Tonight:S wind 13 to 16 km/h becoming SW after midnight. A chance of showers and thunderstorms, mainly after 8pm. Seas around 1 m.

      S 16km/h
      1m

    • Thursday

      Thursday:S wind 11 to 14 km/h. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas around 1 m.

      S 14km/h
      1m

    • Thursday Night

      Thursday Night:S wind 11 to 16 km/h. A chance of showers and thunderstorms. Seas around 1 m.

      S 16km/h
      1m

    • Friday

      Friday:SE wind 10 to 13 km/h. A chance of showers, with thunderstorms also possible after 2pm. Seas around 1 m.

      SE 13km/h
      1m

    • Friday Night

      Friday Night:SE wind 10 to 13 km/h becoming E after midnight. Mostly cloudy. Seas around 1 m.

      SE 13km/h
      1m

    • Saturday

      Saturday:E wind 10 to 13 km/h becoming SE in the afternoon. Partly sunny. Seas around 1 m.

      SE 13km/h
      1m

    • Saturday Night

      Saturday Night:SSE wind 10 to 14 km/h. Partly cloudy. Seas around 1 m.

      SSE 14km/h
      1m

    • Sunday

      Sunday:SSE wind 11 to 14 km/h increasing to 15 to 18 km/h in the afternoon. Mostly sunny. Seas around 1 m.

      ⇑SSE 18km/h
      1m


Associated Zone Forecast which includes this point

Last Update: 8:01 am EDT Jul 9, 2025
Forecast Valid: 10am EDT Jul 9, 2025-6pm EDT Jul 15, 2025

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Detailed Forecast


Today
WSW wind 13 to 18 km/h becoming SSW in the afternoon. A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Seas around 1 m.
Tonight
S wind 13 to 16 km/h becoming SW after midnight. A chance of showers and thunderstorms, mainly after 8pm. Seas around 1 m.
Thursday
S wind 11 to 14 km/h. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas around 1 m.
Thursday Night
S wind 11 to 16 km/h. A chance of showers and thunderstorms. Seas around 1 m.
Friday
SE wind 10 to 13 km/h. A chance of showers, with thunderstorms also possible after 2pm. Seas around 1 m.
Friday Night
SE wind 10 to 13 km/h becoming E after midnight. Mostly cloudy. Seas around 1 m.
Saturday
E wind 10 to 13 km/h becoming SE in the afternoon. Partly sunny. Seas around 1 m.
Saturday Night
SSE wind 10 to 14 km/h. Partly cloudy. Seas around 1 m.
Sunday
SSE wind 11 to 14 km/h increasing to 15 to 18 km/h in the afternoon. Mostly sunny. Seas around 1 m.

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: 8:01 am EDT Jul 9, 2025
Forecast Valid: 10am EDT Jul 9, 2025-6pm EDT Jul 15, 2025
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