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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 pm EST Nov 25, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thanksgiving Day Friday Saturday Sunday Monday
50% chance of rain on This Afternoon 100% chance of rain on Tonight 60% chance of rain on Wednesday Mostly Sunny on Thanksgiving Day Mostly Sunny on Friday Sunny on Saturday 30% chance of rain on Sunday 30% chance of rain on Monday
High: 57°F Low: 53°F High: 60°F High: 44°F High: 44°F High: 43°F High: 53°F High: 48°F
Low: 36°F Low: 31°F Low: 30°F Low: 33°F Low: 39°F  
Rain Rain Rain Mostly Sunny Mostly Sunny Sunny Rain Rain
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Current Conditions at
ISLIP - (KISP)
55°
Cloudy
as of 1:56 PM EST
Rel. Humidity: 71%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: MVFR
Wind Data
10 MPH
190° South
Cloud Level(s): Scattered at 1700ft, Broken at 2500ft, Solid Overcast at 6500ft
Current Conditions at
FARMINGDALE - (KFRG)
54°
Cloudy
Light Rain
as of 2:36 PM EST
Rel. Humidity: 81%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: MVFR
Wind Data
12 MPH
180° South
Cloud Level(s): Broken at 1400ft, Broken at 2000ft, Solid Overcast at 6500ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
54°
Cloudy
as of 1:56 PM EST
Rel. Humidity: 76%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: MVFR
Wind Data
9 MPH
190° South
Cloud Level(s): Broken at 2100ft, Broken at 2700ft, Solid Overcast at 7500ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
54°
Cloudy
as of 1:51 PM EST
Rel. Humidity: 76%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
13 MPH
170° South
Cloud Level(s): Few at 2500ft, Broken at 6500ft, Solid Overcast at 13000ft
50% chance of rain This Afternoon This Afternoon... A 50 percent chance of rain. Cloudy, with a high near 57. South wind around 10 mph.
100% chance of rain Tonight Tonight... Rain, mainly before 4am. Steady temperature around 53. South wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
60% chance of rain Wednesday Wednesday... Rain likely before 10am, then a chance of showers after 4pm. Cloudy, with a high near 60. Southwest wind 9 to 11 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 36. West wind 8 to 17 mph, with gusts as high as 31 mph.
Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 44. Breezy, with a west wind 16 to 20 mph, with gusts as high as 33 mph.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 31. Breezy.
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 30.
Sunny on Saturday Saturday... Sunny, with a high near 43.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 33.
30% chance of rain Sunday Sunday... A 30 percent chance of rain. Mostly cloudy, with a high near 53.
50% chance of rain Sunday Night Sunday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 39.
30% chance of rain Monday Monday... A 30 percent chance of rain. Mostly cloudy, with a high near 48.
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.