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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: 5:50 pm EST Jan 12, 2026 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday M.L.King Day
Mostly Clear on Tonight Sunny on Tuesday Cloudy on Wednesday 30% chance of rain on Thursday Mostly Sunny on Friday Mostly Sunny on Saturday 30% chance of rain & snow on Sunday Mostly Sunny on M.L.King Day
Low: 31°F High: 45°F High: 47°F High: 42°F High: 34°F High: 41°F High: 37°F High: 33°F
Low: 42°F Low: 32°F Low: 19°F Low: 26°F Low: 28°F Low: 20°F  
Mostly Clear Sunny Cloudy Rain Mostly Sunny Mostly Sunny Rain & Snow Mostly Sunny
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Current Conditions at
ISLIP - (KISP)
37°
Feels like 30°F
Mostly Clear
as of 6:56 PM EST
Rel. Humidity: 51%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
9 MPH
240° Southwest
Cloud Level(s): Few at 25000ft
Current Conditions at
FARMINGDALE - (KFRG)
37°
Feels like 30°F
Clear
as of 6:53 PM EST
Rel. Humidity: 51%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
10 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
37°
Feels like 30°F
Clear
as of 6:56 PM EST
Rel. Humidity: 51%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
9 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
37°
Feels like 29°F
Partly Cloudy
as of 6:51 PM EST
Rel. Humidity: 51%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
13 MPH
240° Southwest
Cloud Level(s): Scattered at 25000ft
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 31. West wind 7 to 10 mph, with gusts as high as 21 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 45. West wind 6 to 10 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a steady temperature around 42. Southwest wind around 10 mph, with gusts as high as 23 mph.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 47. Southwest wind 6 to 9 mph.

40% chance of rain Wednesday Night Wednesday Night... A 40 percent chance of showers, mainly after 1am. Cloudy, with a low around 32. Calm wind becoming west around 5 mph after midnight.

30% chance of rain Thursday Thursday... A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 42.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 19.

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

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 26.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 41.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 28.

30% chance of rain & snow Sunday Sunday... A chance of rain and snow. Partly sunny, with a high near 37. Chance of precipitation is 30%.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 20.

Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny, with a high near 33.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:16 AM
Sunset: 4:47 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:51 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:24 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.