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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: 12:43 am EST Dec 19, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

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Today Tonight Saturday Sunday Monday Tuesday Wednesday Christmas Day
100% chance of thunderstorms on Today Cloudy on Tonight Mostly Sunny on Saturday Mostly Sunny on Sunday Sunny on Monday 60% chance of rain & snow on Tuesday Mostly Sunny on Wednesday 40% chance of rain on Christmas Day
High: 56 °F Low: 26°F High: 43°F High: 46°F High: 36°F High: 42°F High: 43°F High: 47°F
Low: 37°F Low: 24°F Low: 26°F Low: 32°F Low: 31°F  
Thunderstorms Cloudy Mostly Sunny Mostly Sunny Sunny Rain & Snow Mostly Sunny Rain
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Current Conditions at
ISLIP - (KISP)
55°
Cloudy
Rain Mist
as of 7:56 AM EST
Rel. Humidity: 93%
Dew Point: 54°F
Visibility: 6 Miles
Pressure: 29.55 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 35 MPH
160° South
Cloud Level(s): Few at 900ft, Scattered at 1500ft, Solid Overcast at 8500ft
Current Conditions at
FARMINGDALE - (KFRG)
54°
Cloudy
Heavy Rain Mist
as of 8:12 AM EST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 3 Miles
Pressure: 29.51 in.
Flight Rule: IFR
Wind Data
17 MPH
Gust: 29 MPH
150° Southeast
Cloud Level(s): Broken at 900ft, Broken at 1200ft, Solid Overcast at 3100ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
55°
Cloudy
Mist
as of 7:56 AM EST
Rel. Humidity: 87%
Dew Point: 52°F
Visibility: 6 Miles
Pressure: 29.57 in.
Flight Rule: VFR
Wind Data
23 MPH
Gust: 38 MPH
160° South
Cloud Level(s): Solid Overcast at 9000ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
54°
Cloudy
Heavy Rain Mist
as of 8:07 AM EST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 2 1/2 Miles
Pressure: 29.51 in.
Flight Rule: IFR
Wind Data
22 MPH
Gust: 33 MPH
150° Southeast
Cloud Level(s): Few at 700ft, Broken at 1300ft, Solid Overcast at 3300ft
100% chance of thunderstorms Today Today... Showers and possibly a thunderstorm before 1pm, then a chance of showers. Temperature rising to near 56 by 10am, then falling to around 46 during the remainder of the day. Windy, with a south wind 20 to 30 mph becoming west in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 26. Wind chill values between 15 and 20. Breezy, with a west wind 14 to 23 mph, with gusts as high as 46 mph.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 43. Wind chill values between 15 and 25. West wind 8 to 11 mph, with gusts as high as 21 mph.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a steady temperature around 37. Southwest wind 7 to 11 mph, with gusts as high as 24 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 46. West wind 10 to 15 mph, with gusts as high as 26 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 24.
Sunny on Monday Monday... Sunny, with a high near 36.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 26.
60% chance of rain & snow Tuesday Tuesday... Rain and snow likely before 1pm, then a chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 60%.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 32.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 43.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 31.
40% chance of rain Christmas Day Christmas Day... A 40 percent chance of rain. Mostly cloudy, with a high near 47.
Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 07:13 AM
Sunset: 4:28 PM
Civil Sunrise:06:42 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 6:07 PM
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