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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
33°F
1°C
| Humidity | 70% |
| Wind Speed | SW 7 mph |
| Barometer | 30.03 in (1016.9 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 4 Dec 1:56 am EST |
Extended Forecast for
Islip Terrace NY
Overnight
Low: 29 °F
Mostly Clear
Thursday
High: 41 °F
Mostly Sunny
then
Decreasing
Clouds and
BreezyThursday Night
Low: 17 °F
Mostly Clear
and Blustery
then Mostly
ClearFriday
High: 36 °F
Mostly Sunny
then Slight
Chance Light
SnowFriday Night
Low: 29 °F
Chance
Rain/Snow
then Chance
Light RainSaturday
High: 42 °F
Chance Light
Rain then
Partly SunnySaturday Night
Low: 28 °F
Partly Cloudy
Sunday
High: 42 °F
Partly Sunny
Sunday Night
Low: 22 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 29. West wind around 8 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 41. Wind chill values between 20 and 30. Breezy, with a west wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 17. Wind chill values between 10 and 15. Blustery, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 31 mph.
Friday
A 20 percent chance of light snow after 4pm. Increasing clouds, with a high near 36. Wind chill values between 10 and 20. Light and variable wind becoming southeast around 6 mph in the afternoon.
Friday Night
A chance of rain and snow before 10pm, then a chance of rain. Mostly cloudy, with a low around 29. Calm wind. Chance of precipitation is 40%.
Saturday
A 30 percent chance of light rain before 10am. Mostly cloudy, with a high near 42.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Partly sunny, with a high near 41.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 30.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 46.
Additional Forecasts and Information
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Forecast AreaABOUT 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)
2:27 am EST Dec 4, 2025
2am EST Dec 4, 2025-6pm EST Dec 10, 2025
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