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Islip, New York Weather Forecast
Islip, New York Weather
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Click for Special Weather Statement for Islip, New York
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Weather Forecast for Islip, New York : Suffolk County
Issued: 1:55 pm EST Jan 26, 2026 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
20% chance of snow on This Afternoon Mostly Clear on Tonight 20% chance of snow on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday Mostly Sunny on Saturday 30% chance of snow on Sunday Mostly Sunny on Monday
High: 25°F Low: 11°F High: 22°F High: 23°F High: 22°F High: 20°F High: 24°F High: 28°F High: 31°F
Low: 11°F Low: 10°F Low: 7°F Low: 7°F Low: 14°F Low: 18°F  
Snow Mostly Clear Snow Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Snow Mostly Sunny
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Current Conditions at
ISLIP - (KISP)
27°
Feels like 14°F
Mostly Cloudy
as of 4:56 PM EST
Rel. Humidity: 63%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 22 MPH
320° Northwest
Cloud Level(s): Broken at 3300ft
Current Conditions at
FARMINGDALE - (KFRG)
25°
Feels like 13°F
Cloudy
as of 4:53 PM EST
Rel. Humidity: 58%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 29.77 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 24 MPH
310° Northwest
Cloud Level(s): Broken at 3700ft, Solid Overcast at 4900ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
25°
Feels like 13°F
Cloudy
as of 4:56 PM EST
Rel. Humidity: 73%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 29.75 in.
Flight Rule: MVFR
Wind Data
12 MPH
Gust: 21 MPH
320° Northwest
Cloud Level(s): Solid Overcast at 2600ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
25°
Feels like 11°F
Mostly Cloudy
as of 4:51 PM EST
Rel. Humidity: 58%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: VFR
Wind Data
17 MPH
320° Northwest
Cloud Level(s): Broken at 3600ft, Broken at 5500ft
20% chance of snow This Afternoon This Afternoon... A chance of flurries. Mostly cloudy, with a steady temperature around 25. Wind chill values between 15 and 20. Northwest wind around 10 mph, with gusts as high as 21 mph.
Mostly Clear on Tonight Tonight... Mostly cloudy, then gradually becoming mostly clear, with a low around 11. Wind chill values between zero and 10. Northwest wind 11 to 14 mph, with gusts as high as 28 mph.
20% chance of snow Tuesday Tuesday... A chance of flurries after noon. Increasing clouds, with a high near 22. Wind chill values between -5 and 5. West wind 10 to 14 mph, with gusts as high as 24 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 11. Wind chill values between zero and 5. West wind around 11 mph, with gusts as high as 24 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 23. West wind 8 to 10 mph, with gusts as high as 20 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 10.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 22.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 7.
Mostly Sunny on Friday Friday... Mostly sunny and cold, with a high near 20.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 7.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 24.
30% chance of snow Saturday Night Saturday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 14.
30% chance of snow Sunday Sunday... A 30 percent chance of snow. Partly sunny, with a high near 28.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 18.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 31.
Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:08 AM
Sunset: 5:03 PM
Civil Sunrise:06:39 AM
Civil Sunset: 5:32 PM
Nautical Sunrise: 06:05 AM
Nautical Sunset: 6:05 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:38 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.