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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: 6:32 pm EST Dec 16, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Clear on Overnight Mostly Sunny on Wednesday Mostly Sunny on Thursday 90% chance of rain on Friday Mostly Sunny on Saturday Partly Sunny on Sunday Mostly Sunny on Monday 30% chance of rain on Tuesday
Low: 25°F High: 44°F High: 53°F High: 54 °F High: 44°F High: 46°F High: 38°F High: 43°F
Low: 28°F Low: 51 °F Low: 27°F Low: 34°F Low: 27°F Low: 26°F  
Mostly Clear Mostly Sunny Mostly Sunny Rain Mostly Sunny Partly Sunny Mostly Sunny Rain
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Current Conditions at
ISLIP - (KISP)
28°
Feels like 19°F
Clear
as of 12:56 AM EST
Rel. Humidity: 63%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
9 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
FARMINGDALE - (KFRG)
27°
Clear
as of 12:53 AM EST
Rel. Humidity: 63%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
6 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
28°
Clear
as of 12:56 AM EST
Rel. Humidity: 63%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
6 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
28°
Feels like 18°F
Mostly Cloudy
as of 12:51 AM EST
Rel. Humidity: 63%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
12 MPH
230° Southwest
Cloud Level(s): Broken at 25000ft
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 25. Southwest wind around 8 mph.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 44. Southwest wind 10 to 15 mph, with gusts as high as 28 mph.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 28. West wind 6 to 11 mph becoming light northwest after midnight. Winds could gust as high as 22 mph.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 53. Light south wind increasing to 5 to 10 mph in the morning.

90% chance of rain Thursday Night Thursday Night... Rain, mainly after 1am. Temperature rising to around 51 by 2am. South wind 8 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

90% chance of rain Friday Friday... Rain, mainly before 1pm. Temperature rising to near 54 by 10am, then falling to around 43 during the remainder of the day. Breezy. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 27.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 44.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 34.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 46.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 27.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 38.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 26.

30% chance of rain Tuesday Tuesday... A 30 percent chance of rain. Mostly cloudy, with a high near 43.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:11 AM
Sunset: 4:27 PM
Civil Sunrise:06:40 AM
Civil Sunset: 4:58 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:32 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:06 PM
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