Great River, New York Weather
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Weather Forecast for Great River, New York : Suffolk County
Issued: 4:06 am EDT Sep 14, 2025 Latitude: 40.7212097 Longitude: -73.1576139 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
20% chance of rain on Today Mostly Clear on Tonight Sunny on Monday Mostly Sunny on Tuesday 40% chance of rain on Wednesday 40% chance of rain on Thursday Sunny on Friday Mostly Sunny on Saturday
High: 77°F Low: 61°F High: 75°F High: 72°F High: 73°F High: 74°F High: 79°F High: 72°F
Low: 59°F Low: 60°F Low: 62°F Low: 63°F Low: 60°F  
Rain Mostly Clear Sunny Mostly Sunny Rain Rain Sunny Mostly Sunny
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Current Conditions at
ISLIP - (KISP)
70°
Mostly Cloudy
as of 7:56 AM EDST
Rel. Humidity: 88%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 8000ft, Broken at 10000ft, Broken at 25000ft
Current Conditions at
FARMINGDALE - (KFRG)
64°
Mostly Cloudy
as of 7:53 AM EDST
Rel. Humidity: 88%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 10000ft
Current Conditions at
SHIRLEY/BROOKHAVEN - (KHWV)
64°
Partly Cloudy
as of 7:56 AM EDST
Rel. Humidity: 88%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 1600ft, Scattered at 10000ft
Current Conditions at
NEW YORK-KENNEDY - (KJFK)
68°
Partly Cloudy
as of 7:51 AM EDST
Rel. Humidity: 82%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
7 MPH
270° West
Cloud Level(s): Few at 9000ft, Scattered at 25000ft
20% chance of rain Today Today... A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 77. South wind 5 to 9 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 61. South wind around 6 mph becoming calm in the evening.
Sunny on Monday Monday... Sunny, with a high near 75. Northeast wind 6 to 10 mph becoming east in the afternoon.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 59. East wind around 6 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 72. Northeast wind 7 to 10 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 60.
40% chance of rain Wednesday Wednesday... A 40 percent chance of showers. Mostly cloudy, with a high near 73.
50% chance of rain Wednesday Night Wednesday Night... A 50 percent chance of showers. Mostly cloudy, with a low around 62.
40% chance of rain Thursday Thursday... A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 74.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 63.
Sunny on Friday Friday... Sunny, with a high near 79.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 60.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 72.
Current Radar Image


Sun Almanac for Great River, New York
Sunrise: 06:33 AM
Sunset: 7:03 PM
Civil Sunrise:06:05 AM
Civil Sunset: 7:31 PM
Nautical Sunrise: 05:33 AM
Nautical Sunset: 8:03 PM
Astro Sunrise: 05:00 AM
Astro Sunset: 8:36 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.