Islip, NY Weather Forecast
Suffolk County, New York
Live radar, warnings and storm tracking for Islip, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Islip
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Islip, NY at a glance
Islip is home to about 336,822 people in Suffolk County, across 103 square miles. It ranks 3rd by population of 593 places in New York with a forecast here. The nearest neighbour with its own forecast is Brightwaters, 3 miles away.
- County
- Suffolk County
- Population
- 336,822 2023 est.
- Land area
- 103 sq mi
- People per sq mi
- 3,264
- Forecast point
- 40.7150°N, 73.1952°W
How well can the network see Islip?
The nearest Doppler radar is KOKX (New York City, NY), to the ENE. Its lowest scan passes about 1,100 ft above Islip. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Islip show up clearly. Islip is closer to its radar than 85% of US cities.
The closest weather station is KISP (Islip/Macarthur Arpt). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Islip
- Brightwaters, NY3 mi
- Islandia, NY6 mi
- Babylon, NY7 mi
- Lindenhurst, NY9 mi
- Patchogue, NY10 mi
- Lake Grove, NY11 mi
- Amityville, NY12 mi
- Farmingdale, NY13 mi
Elsewhere in New York
New YorkBrookhavenOyster BayBuffaloNorth HempsteadYonkersAll New York forecasts →

