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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: 1:11 pm EST Dec 5, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
30% chance of freezing rain & snow on Tonight 20% chance of  on Saturday Partly Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday 30% chance of rain on Wednesday 40% chance of rain on Thursday Partly Sunny on Friday
Low: 32°F High: 42°F High: 41°F High: 33°F High: 39°F High: 48°F High: 45°F High: 41°F
Low: 28°F Low: 26°F Low: 19°F Low: 32°F Low: 35°F Low: 29°F  
Freezing Rain & Snow Cloudy Partly Sunny Mostly Sunny Mostly Sunny Rain Rain Partly Sunny
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Current Conditions at
ISLIP - (KISP)
32°
Cloudy
as of 3:56 PM EST
Rel. Humidity: 59%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
7 MPH
050° Northeast
Cloud Level(s): Few at 2300ft, Scattered at 2900ft, Solid Overcast at 6500ft
Current Conditions at
FARMINGDALE - (KFRG)
30°
Cloudy
as of 3:53 PM EST
Rel. Humidity: 63%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
5 MPH
050° Northeast
Cloud Level(s): Few at 3200ft, Solid Overcast at 6000ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
28°
Cloudy
as of 3:56 PM EST
Rel. Humidity: 63%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: MVFR
Wind Data
3 MPH
Cloud Level(s): Solid Overcast at 2300ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
30°
Cloudy
as of 3:51 PM EST
Rel. Humidity: 63%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: MVFR
Wind Data
7 MPH
050° Northeast
Cloud Level(s): Broken at 3000ft, Solid Overcast at 6000ft
30% chance of freezing rain & snow Tonight Tonight... A slight chance of drizzle, snow, and freezing rain before 1am, then a chance of drizzle or freezing rain between 1am and 2am, then a chance of drizzle after 2am. Cloudy, with a steady temperature around 32. Calm wind. Chance of precipitation is 30%.

20% chance of  Saturday Saturday... A chance of drizzle before 1pm. Cloudy, with a high near 42. Calm wind becoming west 5 to 8 mph in the morning.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 28. Northwest wind around 6 mph.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 41. Wind chill values between 25 and 35. Northwest wind around 6 mph becoming southwest in the afternoon.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 26. Light west wind becoming northwest 5 to 9 mph in the evening.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 33.

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

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 39.

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

30% chance of rain Wednesday Wednesday... A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 48.

50% chance of rain Wednesday Night Wednesday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 35.

40% chance of rain Thursday Thursday... A 40 percent chance of rain. Partly sunny, with a high near 45.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 29.

Partly Sunny on Friday Friday... Partly sunny, with a high near 41.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:02 AM
Sunset: 4:25 PM
Civil Sunrise:06:31 AM
Civil Sunset: 4:56 PM
Nautical Sunrise: 05:57 AM
Nautical Sunset: 5:30 PM
Astro Sunrise: 05:24 AM
Astro Sunset: 6:03 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.