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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: 1:04 am EST Dec 30, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday New Year's Day Friday Saturday Sunday Monday
Partly Sunny on Today Cloudy on Tonight Partly Sunny on Wednesday 20% chance of snow on New Year's Day Partly Sunny on Friday Partly Sunny on Saturday Sunny on Sunday 30% chance of rain & snow on Monday
High: 32°F Low: 24°F High: 35°F High: 30°F High: 32°F High: 33°F High: 33°F High: 37°F
Low: 23°F Low: 18°F Low: 23°F Low: 21°F Low: 24°F  
Partly Sunny Cloudy Partly Sunny Snow Partly Sunny Partly Sunny Sunny Rain & Snow
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Current Conditions at
ISLIP - (KISP)
28°
Feels like 14°F
Cloudy
as of 5:56 AM EST
Rel. Humidity: 46%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 29.59 in.
Flight Rule: VFR
Wind Data
23 MPH
Gust: 32 MPH
290° West
Cloud Level(s): Solid Overcast at 5000ft
Current Conditions at
FARMINGDALE - (KFRG)
30°
Feels like 20°F
Cloudy
as of 5:53 AM EST
Rel. Humidity: 42%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 29.61 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 36 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 5500ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
30°
Feels like 18°F
Cloudy
as of 5:56 AM EST
Rel. Humidity: 46%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 29.59 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 31 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 5000ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
30°
Feels like 16°F
Cloudy
as of 5:51 AM EST
Rel. Humidity: 39%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 29.62 in.
Flight Rule: VFR
Wind Data
24 MPH
Gust: 38 MPH
290° West
Cloud Level(s): Few at 4000ft, Solid Overcast at 6500ft
Partly Sunny on Today Today... Partly sunny, with a high near 32. Wind chill values between 15 and 20. Breezy, with a west wind 17 to 20 mph, with gusts as high as 47 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 24. Wind chill values between 15 and 20. West wind 11 to 16 mph, with gusts as high as 34 mph.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 35. Wind chill values between 15 and 25. West wind 10 to 14 mph.
40% chance of snow Wednesday Night Wednesday Night... A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 23. Southwest wind around 10 mph, with gusts as high as 22 mph.
20% chance of snow New Year's Day New Year's Day... A 20 percent chance of snow before 1pm. Mostly sunny, with a high near 30. Northwest wind 10 to 14 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 18.
Partly Sunny on Friday Friday... Partly sunny, with a high near 32.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 23.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 33.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 21.
Sunny on Sunday Sunday... Sunny, with a high near 33.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 24.
30% chance of rain & snow Monday Monday... A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:17 AM
Sunset: 4:34 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:05 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:13 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.