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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: 1:05 am EST Jan 24, 2026 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Overnight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Clear on Overnight Mostly Sunny on Saturday 100% chance of snow on Sunday 80% chance of snow on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Partly Sunny on Thursday Mostly Sunny on Friday
Low: 9 °F High: 19°F High: 31°F High: 31°F High: 21°F High: 25°F High: 23°F High: 25°F
Low: 13°F Low: 29°F Low: 11°F Low: 10°F Low: 10°F Low: 9°F  
Mostly Clear Mostly Sunny Snow Snow Mostly Sunny Mostly Sunny Partly Sunny Mostly Sunny
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Current Conditions at
ISLIP - (KISP)
14°
Feels like -2°F
Clear
as of 12:56 AM EST
Rel. Humidity: 33%
Dew Point: -9°F
Visibility: 10 Miles
Pressure: 30.42 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 26 MPH
330° Northwest
Cloud Level(s): Clear
Current Conditions at
FARMINGDALE - (KFRG)
12°
Feels like -4°F
Clear
as of 12:53 AM EST
Rel. Humidity: 30%
Dew Point: -13°F
Visibility: 10 Miles
Pressure: 30.43 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 30 MPH
320° Northwest
Cloud Level(s): Clear
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
16°
Feels like 0°F
Clear
as of 12:56 AM EST
Rel. Humidity: 31%
Dew Point: -9°F
Visibility: 10 Miles
Pressure: 30.42 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 26 MPH
330° Northwest
Cloud Level(s): Clear
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
12°
Feels like -4°F
Mostly Clear
as of 12:51 AM EST
Rel. Humidity: 33%
Dew Point: -11°F
Visibility: 10 Miles
Pressure: 30.47 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 30 MPH
330° Northwest
Cloud Level(s): Few at 25000ft
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 9. Wind chill values between -5 and zero. Northwest wind 10 to 17 mph, with gusts as high as 29 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny and cold, with a high near 19. Wind chill values between -5 and 5. North wind 8 to 10 mph, with gusts as high as 25 mph.

40% chance of snow Saturday Night Saturday Night... A 40 percent chance of snow after 4am. Mostly cloudy, with a low around 13. Wind chill values between 5 and 10. North wind around 6 mph.

100% chance of snow Sunday Sunday... Snow, mainly after 7am. The snow could be heavy at times. High near 31. Wind chill values between 5 and 15. Northeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

100% chance of freezing rain & snow Sunday Night Sunday Night... Snow and sleet before 1am, then freezing rain and sleet between 1am and 4am, then snow, possibly mixed with freezing rain and sleet after 4am. Steady temperature around 29. Northeast wind 10 to 16 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow and sleet accumulation of 1 to 3 inches possible.

80% chance of snow Monday Monday... Snow, mainly before 1pm. High near 31. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 11.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 21.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 10.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 25.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 10.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 23.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 9.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 25.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:09 AM
Sunset: 5:01 PM
Civil Sunrise:06:40 AM
Civil Sunset: 5:30 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 6:03 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 6:36 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.