For More Weather Information:

10NM N Islip NY

[NOTICE]

Last Update: 3:41 am EDT Sep 20, 2026
Forecast Valid: 7am EDT Sep 20, 2026-6pm EDT Sep 26, 2026

Today

SE wind 7 to 10 kt. Rain, mainly after 8am. Seas 1 ft or less.

Tonight

SSE wind 6 to 11 kt becoming N after midnight. Periods of rain and possibly a thunderstorm before 2am, then a chance of rain. Seas 1 ft or less.

Monday

NE wind 10 to 15 kt, with gusts as high as 21 kt. A slight chance of rain before 8am. Seas around 2 ft.

Monday Night

ENE wind 10 to 14 kt, with gusts as high as 20 kt. A chance of showers after 2am. Seas 1 to 2 ft.

Tuesday

ENE wind 15 to 17 kt, with gusts as high as 25 kt. A chance of showers. Seas around 2 ft.

Tuesday Night

ENE wind 17 to 19 kt, with gusts as high as 27 kt. Mostly cloudy. Seas 2 to 3 ft.

Wednesday

ENE wind around 20 kt, with gusts as high as 29 kt. Mostly cloudy. Seas around 3 ft.

Wednesday Night

NE wind around 19 kt, with gusts as high as 29 kt. Mostly cloudy. Seas around 3 ft.

Thursday

NE wind around 19 kt, with gusts as high as 29 kt. A chance of showers. Seas around 3 ft.

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.