Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
79°F
26°C
| Humidity | 49% |
| Wind Speed | NW 3 mph |
| Barometer | 30.15 in (1020.8 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 4 Aug 9:56 am EDT |
Extended Forecast for
Head of the Harbor NY
Today
High: 88 °F
Haze
Tonight
Low: 68 °F
Haze then
Partly CloudyTuesday
High: 86 °F
Mostly Sunny
Tuesday Night
Low: 67 °F
Mostly Cloudy
Wednesday
High: 83 °F
Partly Sunny
Wednesday Night
Low: 67 °F
Mostly Cloudy
Thursday
High: 81 °F
Mostly Sunny
Thursday Night
Low: 65 °F
Mostly Clear
Friday
High: 81 °F
Sunny
Detailed Forecast
Today
Widespread haze. Sunny, with a high near 88. Light northwest wind.
Tonight
Widespread haze before midnight. Partly cloudy, with a low around 68. South wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 86. Light and variable wind becoming east 5 to 7 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 67. East wind around 6 mph.
Wednesday
Partly sunny, with a high near 83. East wind 7 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 85.
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)
10:12 am EDT Aug 4, 2025
10am EDT Aug 4, 2025-6pm EDT Aug 10, 2025
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