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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: 5:27 am EST Nov 25, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thanksgiving Day Friday Saturday Sunday Monday
60% chance of rain on Today 100% chance of rain on Tonight 70% chance of rain on Wednesday Mostly Sunny on Thanksgiving Day Mostly Sunny on Friday Sunny on Saturday Mostly Cloudy on Sunday 30% chance of rain on Monday
High: 57°F Low: 53°F High: 60°F High: 45°F High: 44°F High: 43°F High: 49°F High: 52°F
Low: 37°F Low: 31°F Low: 31°F Low: 32°F Low: 37°F  
Rain Rain Rain Mostly Sunny Mostly Sunny Sunny Mostly Cloudy Rain
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Current Conditions at
ISLIP - (KISP)
37°
Clear
as of 4:56 AM EST
Rel. Humidity: 80%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
FARMINGDALE - (KFRG)
36°
Clear
as of 4:53 AM EST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
34°
Clear
as of 4:56 AM EST
Rel. Humidity: 86%
Dew Point: 30°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)
43°
Mostly Cloudy
as of 4:51 AM EST
Rel. Humidity: 75%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
7 MPH
210° Southwest
Cloud Level(s): Broken at 21000ft
60% chance of rain Today Today... Rain likely, mainly after 4pm. Cloudy, with a high near 57. South wind 5 to 11 mph. Chance of precipitation is 60%.

100% chance of rain Tonight Tonight... Rain, mainly before 4am. Steady temperature around 53. South wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

70% chance of rain Wednesday Wednesday... Rain likely, mainly between 7am and 1pm. Cloudy, with a high near 60. Southwest wind 8 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of rain before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 37. West wind 8 to 14 mph, with gusts as high as 24 mph.

Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 45. West wind 13 to 17 mph, with gusts as high as 31 mph.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 31.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 44. Breezy.

Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 31.

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

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 32.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 49.

40% chance of rain Sunday Night Sunday Night... A 40 percent chance of rain. Mostly cloudy, with a low around 37.

30% chance of rain Monday Monday... A 30 percent chance of rain. Mostly cloudy, with a high near 52.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 06:52 AM
Sunset: 4:28 PM
Civil Sunrise:06:22 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 05:48 AM
Nautical Sunset: 5:32 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 6:05 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.