Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
77°F
25°C
| Humidity | 54% |
| Wind Speed | N 12 G 18 mph |
| Barometer | 29.83 in (1010.0 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 5 Sep 12:56 pm EDT |
Extended Forecast for
Head of the Harbor NY
This Afternoon
High: 78 °F
Sunny
Tonight
Low: 60 °F
Scattered
ShowersSunday
High: 73 °F
Sunny
Sunday Night
Low: 59 °F
Mostly Clear
Labor Day
High: 76 °F
Sunny
Monday Night
Low: 61 °F
Mostly Clear
Tuesday
High: 79 °F
Mostly Sunny
Tuesday Night
Low: 64 °F
Mostly Cloudy
Wednesday
High: 80 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 78. North wind around 6 mph.
Tonight
Scattered showers before 2am. Mostly cloudy, with a low around 60. Northeast wind around 6 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 73. Northeast wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 59. Calm wind becoming north around 5 mph after midnight.
Labor Day
Sunny, with a high near 76. Northwest wind around 7 mph.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 75.
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)
2:27 am EDT Sep 5, 2026
1pm EDT Sep 5, 2026-6pm EDT Sep 11, 2026
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