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18NM WSW Islip NY

[NOTICE]

Last Update: 2:45 am EDT Jun 12, 2026
Forecast Valid: 4am EDT Jun 12, 2026-6pm EDT Jun 18, 2026

Friday

WSW wind 9 to 11 kt. A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

Friday Night

WSW wind 9 to 11 kt becoming NNW after midnight. A chance of showers and thunderstorms before 11pm. Seas 1 ft or less.

Saturday

NNW wind 6 to 9 kt becoming WSW in the afternoon. Sunny. Seas 1 ft or less.

Saturday Night

SW wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Sunday

S wind 5 to 10 kt increasing to 12 to 17 kt in the afternoon. A chance of showers after 2pm. Seas 1 ft or less.

Sunday Night

S wind 15 to 18 kt becoming W 10 to 13 kt after midnight. Showers, mainly between 8pm and 2am. Seas 1 ft or less.

Monday

NW wind 9 to 11 kt becoming WSW in the afternoon. Mostly sunny. Seas 1 ft or less.

Monday Night

W wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Tuesday

Variable winds less than 5 kt becoming S 5 to 10 kt in the morning. Partly sunny. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*Notices:

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.
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.