Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
58°F
14°C
| Humidity | 87% |
| Wind Speed | N 3 mph |
| Barometer | 30.24 in (1023.9 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 9 Aug 4:56 am EDT |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Today
High: 80 °F
Sunny
Tonight
Low: 62 °F
Clear then
Patchy FogSunday
High: 84 °F
Sunny
Sunday Night
Low: 66 °F
Mostly Clear
Monday
High: 87 °F
Sunny
Monday Night
Low: 70 °F
Mostly Clear
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
Wednesday
High: 88 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 80. Light and variable wind becoming southeast 5 to 8 mph in the morning.
Tonight
Patchy fog between 4am and 5am. Otherwise, mostly clear, with a low around 62. Light and variable wind.
Sunday
Sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 66. Southwest wind 3 to 6 mph.
Monday
Sunny, with a high near 87. Calm wind becoming southwest 5 to 8 mph in the morning.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 71.
Friday
Mostly sunny, with a high near 85.
Additional Forecasts and Information
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Point Forecast:
Islip, Long Island Mac Arthur Airport NY
40.78°N 73.09°W (Elev. 49 ft)
40.78°N 73.09°W (Elev. 49 ft)
1:59 am EDT Aug 9, 2025
5am EDT Aug 9, 2025-6pm EDT Aug 15, 2025
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