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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: 3:26 pm EST Jan 3, 2026 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
20% chance of snow on Tonight Mostly Sunny on Sunday 30% chance of snow on Monday Mostly Cloudy on Tuesday 30% chance of rain on Wednesday Mostly Sunny on Thursday 40% chance of rain on Friday 40% chance of rain on Saturday
Low: 24°F High: 34°F High: 37°F High: 41°F High: 45°F High: 46°F High: 47°F High: 50°F
Low: 20°F Low: 29°F Low: 33°F Low: 32°F Low: 34°F Low: 38°F  
Snow Mostly Sunny Snow Mostly Cloudy Rain Mostly Sunny Rain Rain
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Current Conditions at
ISLIP - (KISP)
28°
Cloudy
as of 7:56 PM EST
Rel. Humidity: 50%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
3 MPH
240° Southwest
Cloud Level(s): Broken at 12000ft, Solid Overcast at 20000ft
Current Conditions at
FARMINGDALE - (KFRG)
28°
Partly Cloudy
as of 7:53 PM EST
Rel. Humidity: 46%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 12000ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
27°
Mostly Cloudy
as of 7:56 PM EST
Rel. Humidity: 53%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
3 MPH
230° Southwest
Cloud Level(s): Broken at 11000ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
28°
Cloudy
as of 7:51 PM EST
Rel. Humidity: 54%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
8 MPH
240° Southwest
Cloud Level(s): Broken at 11000ft, Solid Overcast at 14000ft
20% chance of snow Tonight Tonight... A slight chance of light snow between 1am and 4am. Cloudy, with a low around 24. North wind 3 to 5 mph. Chance of precipitation is 20%.
Mostly Sunny on Sunday Sunday... Cloudy, then gradually becoming mostly sunny, with a high near 34. Wind chill values between 20 and 25. Northwest wind 5 to 11 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 20. Wind chill values between 15 and 20. Northwest wind 6 to 9 mph.
30% chance of snow Monday Monday... A 30 percent chance of light snow, mainly after 4pm. Increasing clouds, with a high near 37. Wind chill values between 15 and 25. Northwest wind 5 to 8 mph becoming south in the afternoon.
30% chance of snow Monday Night Monday Night... A 30 percent chance of light snow, mainly before 7pm. Cloudy, with a low around 29. South wind 5 to 9 mph becoming calm in the evening.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 41.
30% chance of rain Tuesday Night Tuesday Night... A 30 percent chance of rain after 1am. Cloudy, with a low around 33.
30% chance of rain Wednesday Wednesday... A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 45.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 32.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 46.
30% chance of rain Thursday Night Thursday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 34.
40% chance of rain Friday Friday... A 40 percent chance of rain. Mostly cloudy, with a high near 47.
40% chance of rain Friday Night Friday Night... A 40 percent chance of rain. Mostly cloudy, with a low around 38.
40% chance of rain Saturday Saturday... A 40 percent chance of rain. Mostly cloudy, with a high near 50.
Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:17 AM
Sunset: 4:38 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:16 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.