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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: 1:42 pm EST Jan 22, 2026 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Partly Sunny on This Afternoon Mostly Cloudy on Tonight Mostly Sunny on Friday Mostly Sunny on Saturday 100% chance of snow on Sunday 60% chance of snow on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday
High: 44°F Low: 27°F High: 36°F High: 19°F High: 28°F High: 29°F High: 23°F High: 26°F
Low: 10°F Low: 13°F Low: 21°F Low: 12°F Low: 12°F  
Partly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny Snow Snow Mostly Sunny Mostly Sunny
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Current Conditions at
ISLIP - (KISP)
45°
Feels like 37°F
Mostly Cloudy
as of 12:56 PM EST
Rel. Humidity: 36%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 28 MPH
260° West
Cloud Level(s): Few at 5000ft, Broken at 25000ft
Current Conditions at
FARMINGDALE - (KFRG)
Clear
as of 12:53 PM EST
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 26 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
45°
Feels like 36°F
Clear
as of 12:56 PM EST
Rel. Humidity: 39%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 33 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
46°
Feels like 38°F
Mostly Cloudy
as of 12:51 PM EST
Rel. Humidity: 39%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 32 MPH
260° West
Cloud Level(s): Few at 5000ft, Broken at 25000ft
Partly Sunny on This Afternoon This Afternoon... Partly sunny, with a high near 44. West wind around 14 mph, with gusts as high as 26 mph.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 27. West wind 8 to 10 mph, with gusts as high as 21 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 36. Wind chill values between 20 and 25. West wind 7 to 16 mph, with gusts as high as 30 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 10. Wind chill values between -5 and 5. Northwest wind 10 to 17 mph, with gusts as high as 32 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny and cold, with a high near 19. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

40% chance of snow Saturday Night Saturday Night... A 40 percent chance of snow after 1am. Cloudy, with a low around 13.

100% chance of snow Sunday Sunday... Snow. The snow could be heavy at times. High near 28. Chance of precipitation is 100%.

100% chance of snow Sunday Night Sunday Night... Snow. Low around 21. Chance of precipitation is 100%.

60% chance of snow Monday Monday... Snow likely, mainly before noon. Mostly cloudy, with a high near 29. Chance of precipitation is 60%.

30% chance of snow Monday Night Monday Night... A 30 percent chance of snow showers before 7pm. Partly cloudy, with a low around 12.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 23.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 12.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 26.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:11 AM
Sunset: 4:58 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:28 PM
Nautical Sunrise: 06:08 AM
Nautical Sunset: 6:01 PM
Astro Sunrise: 05:35 AM
Astro Sunset: 6:34 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.