Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
36°F
2°C
| Humidity | 82% |
| Wind Speed | N 3 mph |
| Barometer | 30.24 in (1024.0 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Last update | 20 Nov 5:56 am EST |
Extended Forecast for
Head of the Harbor NY
Today
High: 46 °F
Mostly Sunny
Tonight
Low: 35 °F
Increasing
CloudsFriday
High: 53 °F
Mostly Cloudy
Friday Night
Low: 42 °F
Chance Rain
Saturday
High: 50 °F
Slight Chance
RainSaturday Night
Low: 34 °F
Partly Cloudy
Sunday
High: 48 °F
Mostly Sunny
Sunday Night
Low: 39 °F
Partly Cloudy
Monday
High: 52 °F
Mostly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 46. Northeast wind around 5 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 35. Calm wind.
Friday
Mostly cloudy, with a high near 53. Calm wind becoming southwest 5 to 9 mph in the morning.
Friday Night
A 50 percent chance of rain. Cloudy, with a low around 42. Southwest wind around 6 mph becoming northwest after midnight.
Saturday
A 20 percent chance of rain before 1pm. Partly sunny, with a high near 50. North wind 8 to 10 mph.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 54.
Tuesday Night
Rain likely. Cloudy, with a low around 44. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of rain. Partly sunny, with a high near 58.
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)
12:34 am EST Nov 20, 2025
6am EST Nov 20, 2025-6pm EST Nov 26, 2025
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