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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: 1:17 am EST Jan 16, 2026 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday M.L.King Day Tuesday Wednesday Thursday
Sunny on Today 30% chance of snow on Tonight 60% chance of rain & snow on Saturday 30% chance of rain & snow on Sunday Sunny on M.L.King Day Sunny on Tuesday Mostly Sunny on Wednesday Partly Sunny on Thursday
High: 37°F Low: 36 °F High: 41°F High: 37°F High: 35°F High: 24°F High: 34°F High: 38°F
Low: 31°F Low: 22°F Low: 15°F Low: 14°F Low: 25°F  
Sunny Snow Rain & Snow Rain & Snow Sunny Sunny Mostly Sunny Partly Sunny
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Current Conditions at
ISLIP - (KISP)
25°
Feels like 11°F
Mostly Clear
as of 9:56 AM EST
Rel. Humidity: 45%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 29 MPH
290° West
Cloud Level(s): Few at 5500ft
Current Conditions at
FARMINGDALE - (KFRG)
27°
Feels like 14°F
Clear
as of 9:53 AM EST
Rel. Humidity: 42%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 31 MPH
290° West
Cloud Level(s): Clear
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
25°
Feels like 10°F
Clear
as of 9:56 AM EST
Rel. Humidity: 41%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 32 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
27°
Feels like 12°F
Mostly Clear
as of 9:51 AM EST
Rel. Humidity: 42%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 29.88 in.
Flight Rule: VFR
Wind Data
22 MPH
Gust: 31 MPH
280° West
Cloud Level(s): Few at 5500ft
Sunny on Today Today... Sunny, with a high near 37. Wind chill values between 15 and 25. West wind 10 to 16 mph, with gusts as high as 30 mph.

30% chance of snow Tonight Tonight... A 30 percent chance of snow after 1am. Mostly cloudy, with a temperature rising to around 36 by 3am. Wind chill values between 25 and 30. Southwest wind around 7 mph.

60% chance of rain & snow Saturday Saturday... A chance of rain and snow before 1pm, then rain likely. Mostly cloudy, with a high near 41. Southwest wind 6 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

20% chance of snow Saturday Night Saturday Night... A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 31. West wind 3 to 6 mph.

30% chance of rain & snow Sunday Sunday... A chance of rain and snow before 1pm, then a chance of snow. Cloudy, with a high near 37. West wind 5 to 9 mph. Chance of precipitation is 30%.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 22.

Sunny on M.L.King Day M.L.King Day... Sunny, with a high near 35.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 15.

Sunny on Tuesday Tuesday... Sunny, with a high near 24.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 14.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 34.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 25.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 38.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:14 AM
Sunset: 4:51 PM
Civil Sunrise:06:44 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:55 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:28 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.