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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: 1:12 pm EST Dec 11, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Cloudy on Tonight Sunny on Friday Mostly Cloudy on Saturday 60% chance of snow on Sunday Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday 30% chance of rain on Thursday
Low: 23°F High: 35°F High: 41°F High: 32°F High: 31°F High: 36°F High: 44°F High: 50°F
Low: 24°F Low: 26°F Low: 18°F Low: 22°F Low: 26°F Low: 34°F  
Cloudy Sunny Mostly Cloudy Snow Sunny Mostly Sunny Partly Sunny Rain
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Current Conditions at
ISLIP - (KISP)
36°
Feels like 25°F
Mostly Cloudy
as of 2:56 PM EST
Rel. Humidity: 31%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 29.66 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 26 MPH
270° West
Cloud Level(s): Broken at 6500ft
Current Conditions at
FARMINGDALE - (KFRG)
36°
Feels like 25°F
Partly Cloudy
as of 2:53 PM EST
Rel. Humidity: 34%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 29.67 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 29 MPH
270° West
Cloud Level(s): Scattered at 6500ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
34°
Feels like 22°F
Cloudy
as of 2:56 PM EST
Rel. Humidity: 34%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 29.67 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 32 MPH
280° West
Cloud Level(s): Solid Overcast at 6500ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
36°
Feels like 25°F
Partly Cloudy
as of 2:51 PM EST
Rel. Humidity: 31%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 29.69 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 36 MPH
290° West
Cloud Level(s): Scattered at 6500ft
Cloudy on Tonight Tonight... Partly cloudy, with a low around 23. Wind chill values between 15 and 20. West wind 13 to 15 mph, with gusts as high as 45 mph.
Sunny on Friday Friday... Sunny, with a high near 35. Wind chill values between 10 and 20. West wind 10 to 14 mph, with gusts as high as 28 mph.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 24. West wind 3 to 7 mph.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 41. Wind chill values between 25 and 35. Light west wind becoming southwest 6 to 11 mph in the morning.
70% chance of snow Saturday Night Saturday Night... Snow likely, mainly after 1am. Cloudy, with a low around 26. West wind 6 to 8 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
60% chance of snow Sunday Sunday... Snow likely before 1pm. Mostly cloudy, with a high near 32. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 18.
Sunny on Monday Monday... Sunny, with a high near 31.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 22.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 36.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 26.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 44.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 34.
30% chance of rain Thursday Thursday... A 30 percent chance of rain. Mostly cloudy, with a high near 50.
Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:07 AM
Sunset: 4:25 PM
Civil Sunrise:06:36 AM
Civil Sunset: 4:56 PM
Nautical Sunrise: 06:02 AM
Nautical Sunset: 5:31 PM
Astro Sunrise: 05:29 AM
Astro Sunset: 6:04 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.