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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: 12:58 pm EST Jan 8, 2026 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 30% chance of rain on Friday 90% chance of rain on Saturday 40% chance of rain on Sunday Sunny on Monday Sunny on Tuesday Mostly Cloudy on Wednesday 30% chance of rain on Thursday
Low: 33°F High: 50°F High: 48°F High: 48°F High: 41°F High: 43°F High: 44°F High: 40°F
Low: 41°F Low: 40°F Low: 28°F Low: 32°F Low: 34°F Low: 32°F  
Cloudy Rain Rain Rain Sunny Sunny Mostly Cloudy Rain
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Current Conditions at
ISLIP - (KISP)
43°
Partly Cloudy
as of 6:56 PM EST
Rel. Humidity: 56%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 15000ft, Scattered at 25000ft
Current Conditions at
FARMINGDALE - (KFRG)
39°
Clear
as of 6:53 PM EST
Rel. Humidity: 80%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
34°
Clear
as of 6:56 PM EST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
45°
Mostly Cloudy
as of 6:51 PM EST
Rel. Humidity: 56%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 25000ft
Cloudy on Tonight Tonight... Partly cloudy, with a low around 33. Calm wind.

30% chance of rain Friday Friday... A 30 percent chance of rain after 4pm. Mostly cloudy, with a high near 50. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

60% chance of rain Friday Night Friday Night... Rain likely, mainly between 7pm and 1am. Cloudy, with a low around 41. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

90% chance of rain Saturday Saturday... Rain, mainly after 1pm. High near 48. Light and variable wind becoming northeast 5 to 8 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

90% chance of rain Saturday Night Saturday Night... Rain. Low around 40. East wind around 7 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

40% chance of rain Sunday Sunday... A 40 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 48. Breezy.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 28. Breezy.

Sunny on Monday Monday... Sunny, with a high near 41. Breezy.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 32.

Sunny on Tuesday Tuesday... Sunny, with a high near 43.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 44.

30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 32.

30% chance of rain Thursday Thursday... A 30 percent chance of rain. Partly sunny, with a high near 40.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:17 AM
Sunset: 4:43 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:13 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:47 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:20 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.