Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
46°F
8°C
| Humidity | 51% |
| Wind Speed | NW 10 mph |
| Barometer | 29.90 in (1012.4 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 6 Apr 2:56 am EDT |
Extended Forecast for
Islip NY
Overnight
Low: 39 °F
Clear
Monday
High: 53 °F
Sunny
Monday Night
Low: 39 °F
Slight Chance
ShowersTuesday
High: 51 °F
Mostly Sunny
Tuesday Night
Low: 31 °F
Mostly Clear
Wednesday
High: 46 °F
Sunny
Wednesday Night
Low: 35 °F
Mostly Clear
Thursday
High: 50 °F
Mostly Sunny
Thursday Night
Low: 41 °F
Partly Cloudy
Detailed Forecast
Overnight
Clear, with a low around 39. Northwest wind around 9 mph.
Monday
Sunny, with a high near 53. Northwest wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 39. West wind around 5 mph becoming light and variable. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 51. Northwest wind 8 to 14 mph.
Tuesday Night
Mostly clear, with a low around 31. North wind 8 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 57.
Additional Forecasts and Information
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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)
2:34 am EDT Apr 6, 2026
3am EDT Apr 6, 2026-6pm EDT Apr 12, 2026
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