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Islip, New York Weather Forecast
Islip, New York Weather
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Weather Forecast for Islip, New York : Suffolk County
Issued: 9:16 pm EST Nov 17, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Mostly Clear on Overnight Mostly Sunny on Tuesday 20% chance of rain on Wednesday Mostly Cloudy on Thursday 40% chance of rain on Friday 40% chance of rain on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday
Low: 34°F High: 47°F High: 49°F High: 51°F High: 57°F High: 51°F High: 50°F High: 54°F
Low: 36°F Low: 36°F Low: 43°F Low: 41°F Low: 35°F Low: 38°F  
Mostly Clear Mostly Sunny Rain Mostly Cloudy Rain Rain Mostly Sunny Mostly Sunny
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Current Conditions at
ISLIP - (KISP)
43°
Feels like 35°F
Mostly Cloudy
as of 11:56 PM EST
Rel. Humidity: 41%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 28 MPH
300° Northwest
Cloud Level(s): Broken at 5000ft
Current Conditions at
FARMINGDALE - (KFRG)
39°
Mostly Cloudy
as of 11:53 PM EST
Rel. Humidity: 44%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
6 MPH
290° West
Cloud Level(s): Broken at 5000ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
41°
Feels like 33°F
Cloudy
as of 11:56 PM EST
Rel. Humidity: 44%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 22 MPH
320° Northwest
Cloud Level(s): Solid Overcast at 5000ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
39°
Feels like 30°F
Mostly Clear
as of 11:51 PM EST
Rel. Humidity: 44%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 28 MPH
300° Northwest
Cloud Level(s): Few at 6000ft
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 34. West wind around 11 mph, with gusts as high as 25 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 47. West wind 10 to 13 mph.
40% chance of rain Tuesday Night Tuesday Night... A 40 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 36. West wind around 6 mph becoming calm in the evening.
20% chance of rain Wednesday Wednesday... A 20 percent chance of rain before 1pm. Partly sunny, with a high near 49. Northeast wind 3 to 8 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 36. Northeast wind 3 to 5 mph.
Mostly Cloudy on Thursday Thursday... Mostly cloudy, with a high near 51.
Cloudy on Thursday Night Thursday Night... Cloudy, with a low around 43.
40% chance of rain Friday Friday... A 40 percent chance of rain. Cloudy, with a high near 57.
50% chance of rain Friday Night Friday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 41.
40% chance of rain Saturday Saturday... A 40 percent chance of rain. Partly sunny, with a high near 51.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 35.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 50.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 38.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 54.
Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 06:44 AM
Sunset: 4:32 PM
Civil Sunrise:06:14 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 05:41 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 05:08 AM
Astro Sunset: 6:08 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.