


Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
64°F
18°C
Humidity | 54% |
Wind Speed | N 13 mph |
Barometer | 29.89 in (1011.9 mb) |
Dewpoint | 47°F (8°C) |
Visibility | 10.00 mi |
Last update | 22 Aug 12:56 am EDT |
Extended Forecast for
East Setauket NY
Overnight
Low: 60 °F
Mostly Clear
Friday
High: 83 °F
Sunny
Friday Night
Low: 66 °F
Mostly Clear
Saturday
High: 85 °F
Sunny
Saturday Night
Low: 68 °F
Mostly Clear
Sunday
High: 83 °F
Mostly Sunny
Sunday Night
Low: 68 °F
Chance
ShowersMonday
High: 83 °F
Showers
LikelyMonday Night
Low: 64 °F
Chance
Showers then
Mostly Clear
Detailed Forecast
Overnight
Mostly clear, with a low around 60. North wind 15 to 17 mph.
Friday
Sunny, with a high near 83. North wind 6 to 13 mph.
Friday Night
Mostly clear, with a low around 66. Southwest wind 3 to 6 mph.
Saturday
Sunny, with a high near 85. Southwest wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 68. South wind 7 to 10 mph.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 68.
Monday
Showers likely, mainly before 2pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 64.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 81.
Additional Forecasts and Information
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ABOUT 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)
9:51 pm EDT Aug 21, 2025
1am EDT Aug 22, 2025-6pm EDT Aug 28, 2025