Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

For More Weather Information:

New York, NY Local Forecast Office

18NM WSW Islip NY

Marine Point Forecast

[NOTICE]

Wednesday
SW 10kt
< 1ft
Wednesday Night
SSW 10kt
< 1ft
Thursday
⇑S 17kt
< 1ft
Thursday Night
S 14kt⇓
< 1ft
Friday
⇑SW 8kt
< 1ft
Friday Night
Light Wind
< 1ft
Saturday
N 7kt
< 1ft
Saturday Night
Light Wind
< 1ft
Sunday
⇑S 7kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 7:58 pm EDT Aug 25, 2026
Forecast Valid: 2am EDT Aug 26, 2026-6pm EDT Sep 1, 2026

View Nearby Observations

Detailed Forecast

Wednesday

NNW wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.

Wednesday Night

SSW wind 8 to 10 kt. Partly cloudy. Seas 1 ft or less.

Thursday

S wind 10 to 13 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 25 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Thursday Night

S wind 11 to 14 kt decreasing to 6 to 9 kt after midnight. Winds could gust as high as 20 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SW 5 to 8 kt in the afternoon. Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Seas 1 ft or less.

Friday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Saturday

N wind 5 to 7 kt becoming E in the afternoon. Partly sunny. Seas 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming S 5 to 7 kt in the afternoon. 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.