Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
56°F
13°C
| Humidity | 42% |
| Wind Speed | NW 13 G 22 mph |
| Barometer | 30.13 in (1020.2 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | 10.00 mi |
| Last update | 6 Oct 11:56 am EDT |
Extended Forecast for
Head of the Harbor NY
This Afternoon
High: 63 °F
Sunny
Tonight
Low: 43 °F
Clear
Wednesday
High: 66 °F
Sunny
Wednesday Night
Low: 57 °F
Mostly Clear
Thursday
High: 72 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Friday
High: 67 °F
Sunny
Friday Night
Low: 54 °F
Mostly Clear
Saturday
High: 66 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 63. Northwest wind around 14 mph.
Tonight
Clear, with a low around 43. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 66. Light southwest wind increasing to 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 57. Southwest wind around 10 mph.
Thursday
Sunny, with a high near 72. Southwest wind around 9 mph.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 57.
Columbus Day
A 40 percent chance of showers. Mostly cloudy, with a high near 68.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Head of the Harbor NY
40.9°N 73.15°W (Elev. 157 ft)
40.9°N 73.15°W (Elev. 157 ft)
3:07 am EDT Oct 6, 2026
12pm EDT Oct 6, 2026-6pm EDT Oct 12, 2026
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