Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
76°F
24°C
| Humidity | 58% |
| Wind Speed | N 7 mph |
| Barometer | 29.83 in (1010.0 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 5 Sep 5:56 pm EDT |
Extended Forecast for
East Setauket NY
Tonight
Low: 61 °F
Chance
ShowersSunday
High: 72 °F
Slight Chance
ShowersSunday Night
Low: 57 °F
Mostly Clear
Labor Day
High: 77 °F
Sunny
Monday Night
Low: 61 °F
Mostly Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 66 °F
Mostly Cloudy
Wednesday
High: 80 °F
Partly Sunny
Wednesday Night
Low: 71 °F
Mostly Cloudy
Detailed Forecast
Tonight
A 50 percent chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 61. North wind 6 to 8 mph becoming east in the evening.
Sunday
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 72. Northeast wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 57. Calm wind becoming north around 6 mph after midnight.
Labor Day
Sunny, with a high near 77. North wind 7 to 9 mph.
Monday Night
Mostly clear, with a low around 61. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
Partly sunny, with a high near 80.
Wednesday Night
Mostly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 74.
Additional Forecasts and Information
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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)
4:05 pm EDT Sep 5, 2026
6pm EDT Sep 5, 2026-6pm EDT Sep 12, 2026
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