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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: 1:36 am EST Jan 5, 2026 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Cloudy on Overnight 20% chance of snow on Monday Mostly Cloudy on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday 40% chance of rain on Friday 60% chance of rain on Saturday Partly Sunny on Sunday
Low: 24°F High: 39°F High: 43°F High: 47°F High: 46°F High: 50°F High: 52°F High: 42°F
Low: 31°F Low: 40°F Low: 32°F Low: 37°F Low: 43°F Low: 35°F  
Cloudy Snow Mostly Cloudy Mostly Sunny Mostly Sunny Rain Rain Partly Sunny
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Current Conditions at
FARMINGDALE - (KFRG)
27°
Clear
as of 2:53 AM EST
Rel. Humidity: 63%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
3 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
19°
Mostly Clear
as of 2:56 AM EST
Rel. Humidity: 85%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
3 MPH
320° Northwest
Cloud Level(s): Few at 4800ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
28°
Mostly Clear
as of 2:51 AM EST
Rel. Humidity: 58%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
8 MPH
310° Northwest
Cloud Level(s): Few at 4700ft
Cloudy on Overnight Overnight... Partly cloudy, with a low around 24. Northwest wind 3 to 5 mph.

20% chance of snow Monday Monday... A slight chance of snow after 10am, mixing with rain after 5pm. Mostly cloudy, with a high near 39. Wind chill values between 25 and 30. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 20%.

Cloudy on Monday Night Monday Night... Cloudy, with a low around 31. South wind 5 to 9 mph becoming calm after midnight.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 43. Calm wind becoming east around 5 mph in the afternoon.

40% chance of rain Tuesday Night Tuesday Night... A 40 percent chance of rain. Mostly cloudy, with a steady temperature around 40. Southeast wind 5 to 7 mph becoming west after midnight.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 47.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 32.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 46.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 37.

40% chance of rain Friday Friday... A 40 percent chance of rain. Mostly cloudy, with a high near 50.

60% chance of rain Friday Night Friday Night... Rain likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

60% chance of rain Saturday Saturday... Rain likely. Mostly cloudy, with a high near 52. Chance of precipitation is 60%.

40% chance of rain Saturday Night Saturday Night... A 40 percent chance of rain. Mostly cloudy, with a low around 35.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 42.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:17 AM
Sunset: 4:40 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:18 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.