For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 2:33 pm EDT Jun 27, 2026
Forecast Valid: 7pm EDT Jun 27, 2026-6pm EDT Jul 4, 2026

Tonight

Variable winds 5 kt or less. A chance of showers, mainly before 11pm. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming ESE 5 to 7 kt in the morning. Cloudy, then gradually becoming mostly sunny. Seas 1 ft or less.

Sunday Night

SE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming SSE 5 to 9 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.

Monday Night

SSW wind 6 to 8 kt. Partly cloudy. Seas 1 ft or less.

Tuesday

S wind 6 to 9 kt increasing to 12 to 15 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Tuesday Night

SW wind 10 to 15 kt, with gusts as high as 21 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

SW wind 9 to 12 kt. Mostly sunny. Seas 1 ft or less.

Wednesday Night

SSW wind 7 to 11 kt becoming W after midnight. Mostly clear. Seas 1 ft or less.

*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.