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New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]
    • Today

      Today:WSW wind 14 to 16 kt, with gusts as high as 22 kt. Sunny. Seas 1 ft or less.

      WSW 16kt
      < 1ft

    • Tonight

      Tonight:W wind 11 to 14 kt. Mostly clear. Seas 1 ft or less.

      W 14kt
      < 1ft

    • Tuesday

      Tuesday:W wind 10 to 12 kt becoming SSW in the afternoon. Mostly sunny. Seas 1 ft or less.

      SSW 12kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind 13 to 15 kt. Mostly cloudy. Seas 1 ft or less.

      SSW 15kt
      < 1ft

    • Wednesday

      Wednesday:SW wind 9 to 12 kt. A slight chance of showers.   Seas 1 ft or less.

      SW 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind around 6 kt becoming WNW after midnight. A chance of showers.   Seas 1 ft or less.

      SSW 6kt
      < 1ft

    • Thursday

      Thursday:WNW wind 7 to 12 kt. A chance of rain.   Seas 1 ft or less.

      WNW 12kt
      < 1ft

    • Thursday Night

      Thursday Night:NNW wind 13 to 15 kt. A chance of snow.   Seas 1 ft or less.

      NNW 15kt
      < 1ft

    • Friday

      Friday:NNW wind 12 to 15 kt becoming W in the afternoon. Partly sunny. Seas 1 ft or less.

      NNW 15kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 5:36 am EST Jan 12, 2026
Forecast Valid: 10am EST Jan 12, 2026-6pm EST Jan 18, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 6 AM EST EARLY THIS MORNING...

Today
WSW wind 14 to 16 kt, with gusts as high as 22 kt. Sunny. Seas 1 ft or less.
Tonight
W wind 11 to 14 kt. Mostly clear. Seas 1 ft or less.
Tuesday
W wind 10 to 12 kt becoming SSW in the afternoon. Mostly sunny. Seas 1 ft or less.
Tuesday Night
SSW wind 13 to 15 kt. Mostly cloudy. Seas 1 ft or less.
Wednesday
SW wind 9 to 12 kt. A slight chance of showers. Seas 1 ft or less.
Wednesday Night
SSW wind around 6 kt becoming WNW after midnight. A chance of showers. Seas 1 ft or less.
Thursday
WNW wind 7 to 12 kt. A chance of rain. Seas 1 ft or less.
Thursday Night
NNW wind 13 to 15 kt. A chance of snow. Seas 1 ft or less.
Friday
NNW wind 12 to 15 kt becoming W in the afternoon. Partly sunny. Seas 1 ft or less.

*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: 40.62°N 73.59°W
Last Update: 5:36 am EST Jan 12, 2026
Forecast Valid: 10am EST Jan 12, 2026-6pm EST Jan 18, 2026
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