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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: 3:08 pm EST Jan 4, 2026 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Clear on Tonight 20% chance of snow on Monday Mostly Cloudy on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday 50% chance of rain on Friday 60% chance of rain on Saturday Mostly Sunny on Sunday
Low: 22°F High: 38°F High: 44°F High: 48°F High: 46°F High: 49°F High: 50°F High: 42°F
Low: 30°F Low: 35°F Low: 32°F Low: 37°F Low: 40°F Low: 32°F  
Mostly Clear Snow Mostly Cloudy Mostly Sunny Mostly Sunny Rain Rain Mostly Sunny
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Current Conditions at
ISLIP - (KISP)
30°
Partly Cloudy
as of 6:56 PM EST
Rel. Humidity: 54%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
8 MPH
270° West
Cloud Level(s): Few at 4700ft, Few at 8500ft, Scattered at 12000ft
Current Conditions at
FARMINGDALE - (KFRG)
28°
Partly Cloudy
as of 6:53 PM EST
Rel. Humidity: 58%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
7 MPH
260° West
Cloud Level(s): Scattered at 6000ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
25°
Mostly Clear
as of 6:56 PM EST
Rel. Humidity: 73%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
3 MPH
240° Southwest
Cloud Level(s): Few at 4900ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
30°
Feels like 20°F
Mostly Clear
as of 6:51 PM EST
Rel. Humidity: 54%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 21 MPH
290° West
Cloud Level(s): Few at 4400ft
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 22. Northwest wind 6 to 8 mph.

20% chance of snow Monday Monday... A slight chance of light snow between 10am and 4pm. Mostly cloudy, with a high near 38. Wind chill values between 20 and 30. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 30. South wind around 5 mph becoming calm in the evening.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 44. Calm wind becoming east around 6 mph in the afternoon.

40% chance of light rain Tuesday Night Tuesday Night... A 40 percent chance of light rain. Mostly cloudy, with a low around 35. Light and variable wind becoming west around 6 mph in the evening.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 48.

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.

50% chance of rain Friday Friday... A 50 percent chance of rain. Cloudy, with a high near 49.

60% chance of rain Friday Night Friday Night... Rain likely. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.

60% chance of rain Saturday Saturday... Rain likely. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.

30% chance of rain Saturday Night Saturday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 32.

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

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:17 AM
Sunset: 4:39 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:17 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.