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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
44°F
7°C
| Humidity | 51% |
| Wind Speed | N 9 mph |
| Barometer | 30.43 in (1030.6 mb) |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 39°F (4°C) |
| Last update | 18 Oct 1:56 am EDT |
Extended Forecast for
Islip NY
Overnight
Low: 37 °F
Clear
Sunday
High: 58 °F
Sunny
Sunday Night
Low: 44 °F
Mostly Clear
Monday
High: 61 °F
Increasing
CloudsMonday Night
Low: 46 °F
Mostly Cloudy
Tuesday
High: 64 °F
Partly Sunny
Tuesday Night
Low: 44 °F
Partly Cloudy
Wednesday
High: 59 °F
Mostly Sunny
and Breezy
then Mostly
SunnyWednesday Night
Low: 45 °F
Partly Cloudy
Detailed Forecast
Overnight
Clear, with a low around 37. North wind around 10 mph.
Sunday
Sunny, with a high near 58. North wind around 9 mph.
Sunday Night
Mostly clear, with a low around 44. Northeast wind 3 to 6 mph.
Monday
Increasing clouds, with a high near 61. Northeast wind 9 to 13 mph.
Monday Night
Mostly cloudy, with a low around 46. North wind 9 to 14 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 59. Breezy.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 59.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Islip NY
40.73°N 73.19°W (Elev. 16 ft)
40.73°N 73.19°W (Elev. 16 ft)
2:22 am EDT Oct 18, 2026
2am EDT Oct 18, 2026-6pm EDT Oct 24, 2026
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Hourly Weather Forecast
