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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Light Rain
40°F
4°C
| Humidity | 86% |
| Wind Speed | NW 16 G 26 mph |
| Barometer | 29.63 in (1003.3 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 2 Dec 10:56 pm EST |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Tonight

Low: 36 °F
Decreasing
CloudsWednesday

High: 43 °F
Sunny
Wednesday Night

Low: 31 °F
Mostly Clear
Thursday

High: 43 °F
Partly Sunny
Thursday Night

Low: 19 °F
Mostly Clear
Friday

High: 37 °F
Increasing
CloudsFriday Night

Low: 28 °F
Chance
Rain/SnowSaturday

High: 44 °F
Chance Rain
Saturday Night

Low: 30 °F
Partly Cloudy
Detailed Forecast
Tonight
Cloudy, then gradually becoming partly cloudy, with a steady temperature around 36. Northwest wind around 14 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 43. Northwest wind 7 to 11 mph.
Wednesday Night
Mostly clear, with a low around 31. West wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 43. West wind 10 to 17 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 19. North wind 7 to 16 mph, with gusts as high as 30 mph.
Friday
Increasing clouds, with a high near 37.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Saturday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Partly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 38.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
40.81°N 73.11°W (Elev. 98 ft)
40.81°N 73.11°W (Elev. 98 ft)
5:30 pm EST Dec 2, 2025
11pm EST Dec 2, 2025-6pm EST Dec 9, 2025


