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Hazardous Weather Conditions

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New York, NY Local Forecast Office

3NM SSW Islip NY

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:S wind around 21 kt, with gusts as high as 32 kt. Mostly cloudy. Seas around 1 ft.

      S 21kt
      1ft

    • Tonight

      Tonight:S wind 14 to 17 kt decreasing to 9 to 12 kt after midnight. Winds could gust as high as 24 kt. Showers likely, mainly after 5am. Seas around 1 ft.

      S 17kt⇓
      1ft

    • Thursday

      Thursday:SE wind 5 to 7 kt becoming S in the afternoon. Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

      SE 7kt
      < 1ft

    • Thursday Night

      Thursday Night:Variable winds less than 5 kt becoming WNW around 6 kt in the evening. Showers likely, mainly before 8pm. Seas 1 ft or less.

      ⇑WNW 6kt
      < 1ft

    • Friday

      Friday:NW wind 6 to 8 kt. A chance of showers before 2pm. Seas 1 ft or less.

      NW 8kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

      Light Wind
      < 1ft

    • Saturday

      Saturday:SSW wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. Sunny. Seas 1 ft or less.

      ⇑SSW 13kt
      < 1ft

    • Saturday Night

      Saturday Night:SSW wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.

      SSW 12kt
      < 1ft

    • Sunday

      Sunday:SW wind 6 to 8 kt. Mostly sunny. Seas 1 ft or less.

      SW 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:21 pm EDT May 13, 2026
Forecast Valid: 3pm EDT May 13, 2026-6pm EDT May 20, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING...

This Afternoon
S wind around 21 kt, with gusts as high as 32 kt. Mostly cloudy. Seas around 1 ft.
Tonight
S wind 14 to 17 kt decreasing to 9 to 12 kt after midnight. Winds could gust as high as 24 kt. Showers likely, mainly after 5am. Seas around 1 ft.
Thursday
SE wind 5 to 7 kt becoming S in the afternoon. Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.
Thursday Night
Variable winds less than 5 kt becoming WNW around 6 kt in the evening. Showers likely, mainly before 8pm. Seas 1 ft or less.
Friday
NW wind 6 to 8 kt. A chance of showers before 2pm. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Saturday
SSW wind 5 to 8 kt increasing to 10 to 13 kt in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
SSW wind 8 to 12 kt. Partly cloudy. Seas 1 ft or less.
Sunday
SW wind 6 to 8 kt. Mostly 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: 40.69°N 73.26°W
Last Update: 2:21 pm EDT May 13, 2026
Forecast Valid: 3pm EDT May 13, 2026-6pm EDT May 20, 2026
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