Islip, New York Weather
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Weather Forecast for Islip, New York : Suffolk County
Issued: 7:15 pm EDT Jun 17, 2025 Latitude: 40.7298207 Longitude: -73.2103934 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Juneteenth Friday Saturday Sunday Monday Tuesday
30% chance of thunderstorms on Tonight 30% chance of thunderstorms on Wednesday 30% chance of thunderstorms on Juneteenth Sunny on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Sunny on Monday Sunny on Tuesday
Low: 65°F High: 74°F High: 85°F High: 82°F High: 82°F High: 85°F High: 88°F High: 90°F
Low: 67°F Low: 66°F Low: 65°F Low: 67°F Low: 70°F Low: 71°F  
Thunderstorms Thunderstorms Thunderstorms Sunny Mostly Sunny Mostly Sunny Sunny Sunny
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Current Conditions at
ISLIP - (KISP)
64°
Cloudy
Fog
as of 6:56 PM EDST
Rel. Humidity: 100%
Dew Point: 64°F
Visibility: 1/8 Miles
Pressure: 30.01 in.
Flight Rule: LIFR
Wind Data
5 MPH
130° Southeast
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
FARMINGDALE - (KFRG)
64°
Clear
Fog
as of 7:31 PM EDST
Rel. Humidity: 100%
Dew Point: 64°F
Visibility: 1/4 Miles
Pressure: 30.01 in.
Flight Rule: IFR
Wind Data
5 MPH
110° East
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
64°
Cloudy
Fog
as of 7:03 PM EDST
Rel. Humidity: 93%
Dew Point: 63°F
Visibility: 1/4 Miles
Pressure: 30.02 in.
Flight Rule: LIFR
Wind Data
5 MPH
130° Southeast
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
66°
Cloudy
Mist
as of 6:51 PM EDST
Rel. Humidity: 93%
Dew Point: 64°F
Visibility: 3/4 Miles
Pressure: 30.01 in.
Flight Rule: LIFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 200ft
30% chance of thunderstorms Tonight Tonight... A slight chance of showers between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Patchy fog. Otherwise, cloudy, with a low around 65. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.

30% chance of thunderstorms Wednesday Wednesday... A 30 percent chance of showers and thunderstorms, mainly after 2pm. Cloudy, with a high near 74. South wind 6 to 8 mph.

30% chance of thunderstorms Wednesday Night Wednesday Night... A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 67. South wind 5 to 7 mph.

30% chance of thunderstorms Juneteenth Juneteenth... A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Southwest wind 6 to 14 mph.

30% chance of thunderstorms Thursday Night Thursday Night... A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 66. Southwest wind 8 to 13 mph.

Sunny on Friday Friday... Sunny, with a high near 82.

Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 65.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 82.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 67.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 85.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 70.

Sunny on Monday Monday... Sunny, with a high near 88.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 71.

Sunny on Tuesday Tuesday... Sunny, with a high near 90.

Current Radar Image


Sun Almanac for Islip, New York
Sunrise: 05:21 AM
Sunset: 8:27 PM
Civil Sunrise:04:48 AM
Civil Sunset: 9:00 PM
Nautical Sunrise: 04:05 AM
Nautical Sunset: 9:43 PM
Astro Sunrise: 03:15 AM
Astro Sunset: 10:33 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.