Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
72°F
22°C
| Humidity | 79% |
| Wind Speed | Calm |
| Barometer | 30.20 in (1022.6 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 5 Aug 12:56 am EDT |
Extended Forecast for
Islip NY
Overnight
Low: 67 °F
Haze
Tuesday
High: 83 °F
Haze
Tuesday Night
Low: 68 °F
Mostly Cloudy
Wednesday
High: 80 °F
Mostly Cloudy
Wednesday Night
Low: 67 °F
Mostly Cloudy
Thursday
High: 79 °F
Mostly Sunny
Thursday Night
Low: 65 °F
Mostly Clear
Friday
High: 80 °F
Sunny
Friday Night
Low: 66 °F
Mostly Clear
Detailed Forecast
Overnight
Widespread haze. Partly cloudy, with a low around 67. Calm wind.
Tuesday
Widespread haze. Partly sunny, with a high near 83. Calm wind becoming southeast 5 to 8 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 68. East wind around 6 mph.
Wednesday
Mostly cloudy, with a high near 80. Northeast wind 7 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 67. East wind around 7 mph.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Partly sunny, with a high near 84.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Islip NY
40.73°N 73.22°W (Elev. 7 ft)
40.73°N 73.22°W (Elev. 7 ft)
2:00 pm EDT Aug 4, 2025
1am EDT Aug 5, 2025-6pm EDT Aug 11, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
