Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Light Rain Fog/Mist
56°F
13°C
| Humidity | 97% |
| Wind Speed | NE 7 mph |
| Barometer | 30.09 in (1018.9 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 2.50 mi |
| Last update | 4 Oct 7:56 pm EDT |
Extended Forecast for
Setauket-East Setauket NY
Tonight
Low: 54 °F
Showers
Likely then
Mostly CloudyMonday
High: 67 °F
Mostly Sunny
then Sunny
and BreezyMonday Night
Low: 44 °F
Clear
Tuesday
High: 60 °F
Sunny
Tuesday Night
Low: 46 °F
Clear
Wednesday
High: 64 °F
Sunny
Wednesday Night
Low: 56 °F
Mostly Clear
Thursday
High: 70 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Detailed Forecast
Tonight
Showers likely, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 54. Northeast wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%.
Monday
Sunny, with a high near 67. Breezy, with a northwest wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon.
Monday Night
Clear, with a low around 44. Northwest wind 11 to 17 mph.
Tuesday
Sunny, with a high near 60. Northwest wind around 10 mph.
Tuesday Night
Clear, with a low around 46. West wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 63.
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)
7:32 pm EDT Oct 4, 2026
8pm EDT Oct 4, 2026-6pm EDT Oct 11, 2026
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