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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: 5:20 am EST Dec 27, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday Monday Tuesday Wednesday New Year's Day Friday
Mostly Cloudy on This Afternoon Cloudy on Tonight Partly Sunny on Sunday 80% chance of rain on Monday Partly Sunny on Tuesday Partly Sunny on Wednesday 30% chance of snow on New Year's Day Sunny on Friday
High: 30 °F Low: 20°F High: 42°F High: 52°F High: 34°F High: 37°F High: 35°F High: 29°F
Low: 43 °F Low: 25°F Low: 25°F Low: 25°F Low: 19°F  
Mostly Cloudy Cloudy Partly Sunny Rain Partly Sunny Partly Sunny Snow Sunny
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Current Conditions at
ISLIP - (KISP)
30°
Feels like 19°F
Cloudy
as of 11:56 AM EST
Rel. Humidity: 74%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
14 MPH
020° North
Cloud Level(s): Scattered at 1500ft, Broken at 3200ft, Solid Overcast at 4500ft
Current Conditions at
FARMINGDALE - (KFRG)
28°
Feels like 17°F
Cloudy
as of 11:53 AM EST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
14 MPH
020° North
Cloud Level(s): Few at 3400ft, Solid Overcast at 4000ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
28°
Feels like 19°F
Cloudy
as of 11:56 AM EST
Rel. Humidity: 79%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
10 MPH
Gust: 20 MPH
020° North
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
28°
Feels like 17°F
Cloudy
as of 11:51 AM EST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: MVFR
Wind Data
14 MPH
020° North
Cloud Level(s): Scattered at 1800ft, Solid Overcast at 2300ft
Mostly Cloudy on This Afternoon This Afternoon... Mostly cloudy, with a temperature falling to around 30 by 5pm. Wind chill values between 25 and 30. North wind 8 to 13 mph.

Cloudy on Tonight Tonight... Partly cloudy, with a low around 20. Northwest wind 3 to 5 mph.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 42. Wind chill values between 15 and 25. Light and variable wind becoming west 5 to 7 mph in the morning.

90% chance of rain Sunday Night Sunday Night... Rain. Temperature rising to around 43 by 5am. South wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

80% chance of rain Monday Monday... Rain. High near 52. Southwest wind 10 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Mostly Clear on Monday Night Monday Night... Mostly cloudy, then gradually becoming mostly clear, with a low around 25.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 34. Breezy.

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

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 37.

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

30% chance of snow New Year's Day New Year's Day... A 30 percent chance of snow. Partly sunny, with a high near 35.

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

Sunny on Friday Friday... Sunny, with a high near 29.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:16 AM
Sunset: 4:32 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:03 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 5:38 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:11 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.