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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
32°F
0°C
| Humidity | 69% |
| Wind Speed | Calm |
| Barometer | 30.07 in (1018.3 mb) |
| Dewpoint | 23°F (-5°C) |
| Visibility | 10.00 mi |
| Last update | 3 Dec 6:56 pm EST |
Extended Forecast for
Islip Terrace NY
Tonight

Low: 29 °F
Mostly Clear
Thursday

High: 40 °F
Increasing
CloudsThursday Night

Low: 16 °F
Mostly Clear
Friday
High: 35 °F
Mostly Sunny
then Chance
Light SnowFriday Night
Low: 28 °F
Chance
Rain/Snow
then Chance
Light SnowSaturday

High: 40 °F
Chance Rain
Saturday Night

Low: 28 °F
Partly Cloudy
Sunday

High: 43 °F
Mostly Sunny
Sunday Night

Low: 24 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 29. Calm wind becoming west 5 to 7 mph after midnight.
Thursday
Increasing clouds, with a high near 40. Wind chill values between 25 and 30. West wind 8 to 14 mph, with gusts as high as 29 mph.
Thursday Night
Mostly clear, with a low around 16. Northwest wind 5 to 14 mph, with gusts as high as 32 mph.
Friday
A 30 percent chance of light snow after 1pm. Increasing clouds, with a high near 35. Wind chill values between 15 and 25. Calm wind becoming southeast 5 to 7 mph in the morning.
Friday Night
A chance of rain and snow before 10pm, then a chance of snow. Cloudy, with a low around 28. Light and variable wind. Chance of precipitation is 30%.
Saturday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 40.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 46.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Islip Terrace NY
40.75°N 73.18°W (Elev. 30 ft)
40.75°N 73.18°W (Elev. 30 ft)
4:09 pm EST Dec 3, 2025
7pm EST Dec 3, 2025-6pm EST Dec 10, 2025


