For More Weather Information:

18NM WSW Islip NY

[NOTICE]

Last Update: 2:50 pm EDT Jul 24, 2026
Forecast Valid: 6pm EDT Jul 24, 2026-6pm EDT Jul 31, 2026

Tonight

SSE wind 5 to 9 kt becoming variable and less than 5 kt. Mostly cloudy. Seas 1 ft or less.

Saturday

NE wind 7 to 10 kt becoming ESE 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 ft or less.

Saturday Night

E wind 6 to 8 kt becoming NNE after midnight. Mostly clear. Seas 1 ft or less.

Sunday

NE wind 7 to 11 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.

Sunday Night

SSE wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Monday

S wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Monday Night

S wind 8 to 11 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Tuesday

S wind 9 to 14 kt, with gusts as high as 20 kt. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

Tuesday Night

S wind 8 to 11 kt. Showers likely and possibly a thunderstorm. 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.