News Headlines
Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Light Rain
69°F
21°C
| Humidity | 96% |
| Wind Speed | E 8 mph |
| Barometer | 30.05 in (1017.4 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 8.00 mi |
| Last update | 6 Jul 4:56 am EDT |
Extended Forecast for
East Setauket NY
Flood Watch July 6, 05:55am until July 7, 06:00am
NOW until 6:00am Tue
Flood Watch
Overnight
Low: 69 °F
Heavy Rain
Monday
High: 78 °F
Heavy Rain
Monday Night
Low: 66 °F
Showers
Tuesday
High: 81 °F
Showers
LikelyTuesday Night
Low: 65 °F
Slight Chance
ShowersWednesday
High: 86 °F
Mostly Sunny
Wednesday Night
Low: 68 °F
Mostly Clear
Thursday
High: 91 °F
Mostly Sunny
Detailed Forecast
Overnight
Periods of showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 69. East wind around 14 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Periods of showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 78. East wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Showers and possibly a thunderstorm. Low around 66. East wind 15 to 17 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Cloudy, with a high near 81. Northeast wind around 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 65. Northeast wind 9 to 11 mph.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Mostly sunny, with a high near 91.
Thursday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 72.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 86.
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)
2:26 am EDT Jul 6, 2026
5am EDT Jul 6, 2026-6pm EDT Jul 12, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
