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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
78°F
26°C
| Humidity | 58% |
| Wind Speed | E 6 mph |
| Barometer | 30.03 in (1016.8 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 27 Jun 9:56 am EDT |
Extended Forecast for
Setauket-East Setauket NY
Today
High: 81 °F
Slight Chance
ShowersTonight
Low: 66 °F
Mostly Cloudy
Sunday
High: 80 °F
Partly Sunny
Sunday Night
Low: 65 °F
Partly Cloudy
Monday
High: 83 °F
Sunny
Monday Night
Low: 67 °F
Mostly Clear
Tuesday
High: 86 °F
Mostly Sunny
Tuesday Night
Low: 71 °F
Mostly Cloudy
Wednesday
High: 89 °F
Mostly Sunny
Detailed Forecast
Today
A 20 percent chance of showers. Mostly cloudy, with a high near 81. Light and variable wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 66. Calm wind.
Sunday
Partly sunny, with a high near 80. Calm wind becoming east around 6 mph in the morning.
Sunday Night
Partly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 83. Calm wind becoming east around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Mostly cloudy, with a low around 71.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 75.
Thursday
Sunny, with a high near 93.
Thursday Night
Mostly clear, with a low around 76.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 91.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Setauket-East Setauket NY
40.91°N 73.09°W (Elev. 197 ft)
40.91°N 73.09°W (Elev. 197 ft)
3:13 am EDT Jun 27, 2026
10am EDT Jun 27, 2026-6pm EDT Jul 3, 2026
Additional Resources
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Hourly Weather Forecast
