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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: 5:36 am EST Jan 12, 2026 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Sunny on Today Mostly Clear on Tonight Mostly Sunny on Tuesday 20% chance of rain on Wednesday 40% chance of rain on Thursday 30% chance of snow on Friday Mostly Sunny on Saturday 30% chance of snow on Sunday
High: 41°F Low: 31°F High: 45°F High: 47°F High: 43°F High: 35°F High: 40°F High: 38°F
Low: 41°F Low: 34°F Low: 23°F Low: 25°F Low: 27°F  
Mostly Sunny Mostly Clear Mostly Sunny Rain Rain Snow Mostly Sunny Snow
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Current Conditions at
ISLIP - (KISP)
32°
Feels like 23°F
Mostly Cloudy
as of 7:56 AM EST
Rel. Humidity: 54%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
10 MPH
270° West
Cloud Level(s): Broken at 17000ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
30°
Clear
as of 7:56 AM EST
Rel. Humidity: 58%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
7 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
34°
Feels like 23°F
Partly Cloudy
as of 7:51 AM EST
Rel. Humidity: 50%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
16 MPH
270° West
Cloud Level(s): Few at 5000ft, Scattered at 17000ft, Scattered at 25000ft
Mostly Sunny on Today Today... Mostly sunny, with a high near 41. Wind chill values between 25 and 30. West wind around 14 mph, with gusts as high as 26 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 31. West wind 7 to 9 mph, with gusts as high as 21 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 45. West wind 6 to 10 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a steady temperature around 41. South wind around 10 mph, with gusts as high as 22 mph.
20% chance of rain Wednesday Wednesday... A 20 percent chance of showers. Mostly cloudy, with a high near 47. Southwest wind 7 to 10 mph.
40% chance of rain Wednesday Night Wednesday Night... A 40 percent chance of showers. Cloudy, with a low around 34.
40% chance of rain Thursday Thursday... A 40 percent chance of rain. Mostly cloudy, with a high near 43.
50% chance of snow Thursday Night Thursday Night... A 50 percent chance of snow. Mostly cloudy, with a low around 23.
30% chance of snow Friday Friday... A 30 percent chance of snow before 1pm. Partly sunny, with a high near 35.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 25.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 40.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 27.
30% chance of snow Sunday Sunday... A 30 percent chance of snow showers. Partly sunny, with a high near 38.
Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:16 AM
Sunset: 4:47 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:51 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:24 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.