Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
23°F
-5°C
| Humidity | 46% |
| Wind Speed | W 14 G 24 mph |
| Barometer | 29.69 in (1005.6 mb) |
| Dewpoint | 5°F (-15°C) |
| Visibility | 10.00 mi |
| Wind Chill | 11°F (-12°C) |
| Last update | 16 Jan 5:56 am EST |
Extended Forecast for
Islip Terrace NY
Today
High: 37 °F
Sunny
Tonight
Low: 33 °F
Partly Cloudy
then Chance
SnowSaturday
High: 41 °F
Rain/Snow
LikelySaturday Night
Low: 30 °F
Mostly Cloudy
then Slight
Chance SnowSunday
High: 37 °F
Chance
Rain/SnowSunday Night
Low: 21 °F
Partly Cloudy
M.L.King Day
High: 35 °F
Sunny
Monday Night
Low: 15 °F
Mostly Clear
Tuesday
High: 23 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 37. Wind chill values between 10 and 20. West wind 10 to 15 mph, with gusts as high as 32 mph.
Tonight
A 30 percent chance of snow after 1am. Mostly cloudy, with a steady temperature around 33. Wind chill values between 25 and 30. Southwest wind around 6 mph.
Saturday
A chance of rain and snow before 1pm, then rain likely between 1pm and 4pm, then rain likely, possibly mixed with snow after 4pm. Mostly cloudy, with a high near 41. Southwest wind 6 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
A slight chance of snow before 7pm, then a slight chance of snow after 1am. Mostly cloudy, with a low around 30. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
A chance of rain and snow before 1pm, then a chance of snow. Cloudy, with a high near 37. Light west wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 21.
M.L.King Day
Sunny, with a high near 35.
Monday Night
Mostly clear, with a low around 15.
Tuesday
Sunny, with a high near 23.
Tuesday Night
Mostly clear, with a low around 13.
Wednesday
Mostly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 38.
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)
1:17 am EST Jan 16, 2026
6am EST Jan 16, 2026-6pm EST Jan 22, 2026
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