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New York, NY Local Forecast Office

5NM SSW Islip NY

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Patchy fog before 8am.  Seas 1 ft or less.

      ⇑S 9kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSW wind around 8 kt. A chance of showers and thunderstorms, mainly between 2am and 5am.   Seas 1 ft or less.

      SSW 8kt
      < 1ft

    • Thursday

      Thursday:SSW wind 8 to 12 kt. A chance of showers and thunderstorms, mainly after 8am.   Seas 1 ft or less.

      SSW 12kt
      < 1ft

    • Thursday Night

      Thursday Night:SW wind around 9 kt becoming W after midnight. Partly cloudy. Seas 1 ft or less.

      SW 9kt
      < 1ft

    • Friday

      Friday:WNW wind around 8 kt. Sunny. Seas 1 ft or less.

      WNW 8kt
      < 1ft

    • Friday Night

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

      Light Wind
      < 1ft

    • Saturday

      Saturday:NE wind 5 to 7 kt becoming SSE in the afternoon. Mostly sunny. Seas 1 ft or less.

      SE 7kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind around 6 kt. A chance of showers.   Seas 1 ft or less.

      S 6kt
      < 1ft

    • Sunday

      Sunday:S wind 5 to 8 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm.   Seas 1 ft or less.

      S 8kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 2:02 am EDT Jul 16, 2025
Forecast Valid: 3am EDT Jul 16, 2025-6pm EDT Jul 22, 2025

View Nearby Observations

Detailed Forecast


Wednesday
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. Patchy fog before 8am. Seas 1 ft or less.
Wednesday Night
SSW wind around 8 kt. A chance of showers and thunderstorms, mainly between 2am and 5am. Seas 1 ft or less.
Thursday
SSW wind 8 to 12 kt. A chance of showers and thunderstorms, mainly after 8am. Seas 1 ft or less.
Thursday Night
SW wind around 9 kt becoming W after midnight. Partly cloudy. Seas 1 ft or less.
Friday
WNW wind around 8 kt. Sunny. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Saturday
NE wind 5 to 7 kt becoming SSE in the afternoon. Mostly sunny. Seas 1 ft or less.
Saturday Night
S wind around 6 kt. A chance of showers. Seas 1 ft or less.
Sunday
S wind 5 to 8 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. 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: 40.67°N 73.29°W
Last Update: 2:02 am EDT Jul 16, 2025
Forecast Valid: 3am EDT Jul 16, 2025-6pm EDT Jul 22, 2025
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