News Headlines
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
57°F
14°C
| Humidity | 32% |
| Wind Speed | N 16 G 30 mph |
| Barometer | 29.87 in (1011.4 mb) |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Last update | 16 Oct 5:56 pm EDT |
Extended Forecast for
East Setauket NY
Tonight
Low: 45 °F
Clear
Friday
High: 62 °F
Sunny
Friday Night
Low: 46 °F
Mostly Clear
Saturday
High: 64 °F
Sunny
Saturday Night
Low: 52 °F
Partly Cloudy
Sunday
High: 70 °F
Mostly Sunny
Sunday Night
Low: 55 °F
Showers
Monday
High: 66 °F
Showers then
Chance
ShowersMonday Night
Low: 52 °F
Partly Cloudy
Detailed Forecast
Tonight
Clear, with a low around 45. North wind 14 to 18 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 62. North wind 10 to 13 mph.
Friday Night
Mostly clear, with a low around 46. North wind 7 to 10 mph.
Saturday
Sunny, with a high near 64. North wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Partly cloudy, with a low around 52. South wind around 6 mph.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Showers, mainly after 8pm. Low around 55. Chance of precipitation is 80%.
Monday
Showers, mainly before 8am. High near 66. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Sunny, with a high near 67.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53.
Wednesday
A 40 percent chance of showers. Mostly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 63.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
East Setauket NY
40.94°N 73.11°W (Elev. 52 ft)
40.94°N 73.11°W (Elev. 52 ft)
2:14 pm EDT Oct 16, 2025
6pm EDT Oct 16, 2025-6pm EDT Oct 23, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
