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Hazardous Weather Conditions

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New York, NY Local Forecast Office

5NM S Islip NY

Marine Point Forecast

[NOTICE]

    • Today

      Today:ESE wind 15 to 18 kt, with gusts as high as 24 kt. Rain, mainly after 11am. Seas around 1 ft.

      ESE 18kt
      1ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:E wind 19 to 22 kt becoming NNE 15 to 18 kt after midnight. Winds could gust as high as 28 kt. Rain and possibly a thunderstorm, mainly before 2am, then a chance of rain and thunderstorms after 2am. Seas around 1 ft.

      E 22kt⇓
      1ft

      Small Craft Advisory
      Small Craft Advisory

    • Columbus Day

      Columbus Day:NNE wind 14 to 17 kt decreasing to 11 to 14 kt in the afternoon. A chance of showers before 11am. Seas around 1 ft.

      NNE 17kt⇓
      1ft

    • Monday Night

      Monday Night:NNW wind around 6 kt becoming N after midnight. Mostly clear. Seas 1 ft or less.

      NNW 6kt
      < 1ft

    • Tuesday

      Tuesday:ENE wind 5 to 8 kt becoming S 9 to 12 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

      ⇑S 12kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SW wind 16 to 18 kt. Partly cloudy. Seas around 1 ft.

      SW 18kt
      1ft

    • Wednesday

      Wednesday:WSW wind around 14 kt becoming WNW in the afternoon. Sunny. Seas around 1 ft.

      WSW 14kt
      1ft

    • Wednesday Night

      Wednesday Night:N wind around 13 kt. Mostly clear. Seas around 1 ft.

      N 13kt
      1ft

    • Thursday

      Thursday:N wind 10 to 14 kt. Mostly sunny. Seas around 1 ft.

      N 14kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 5:35 am EDT Oct 11, 2026
Forecast Valid: 6am EDT Oct 11, 2026-6pm EDT Oct 17, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH

Today
ESE wind 15 to 18 kt, with gusts as high as 24 kt. Rain, mainly after 11am. Seas around 1 ft.
Tonight
E wind 19 to 22 kt becoming NNE 15 to 18 kt after midnight. Winds could gust as high as 28 kt. Rain and possibly a thunderstorm, mainly before 2am, then a chance of rain and thunderstorms after 2am. Seas around 1 ft.
Columbus Day
NNE wind 14 to 17 kt decreasing to 11 to 14 kt in the afternoon. A chance of showers before 11am. Seas around 1 ft.
Monday Night
NNW wind around 6 kt becoming N after midnight. Mostly clear. Seas 1 ft or less.
Tuesday
ENE wind 5 to 8 kt becoming S 9 to 12 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Tuesday Night
SW wind 16 to 18 kt. Partly cloudy. Seas around 1 ft.
Wednesday
WSW wind around 14 kt becoming WNW in the afternoon. Sunny. Seas around 1 ft.
Wednesday Night
N wind around 13 kt. Mostly clear. Seas around 1 ft.
Thursday
N wind 10 to 14 kt. Mostly sunny. Seas around 1 ft.

*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: 40.66°N 73.2°W
Last Update: 5:35 am EDT Oct 11, 2026
Forecast Valid: 6am EDT Oct 11, 2026-6pm EDT Oct 17, 2026
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