Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
28°F
-2°C
| Humidity | 49% |
| Wind Speed | W 7 mph |
| Barometer | 30.04 in (1017.3 mb) |
| Dewpoint | 11°F (-12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 21°F (-6°C) |
| Last update | 16 Jan 6:56 pm EST |
Extended Forecast for
Islip Terrace NY
Tonight
Low: 30 °F⇑
Partly Cloudy
then Chance
SnowSaturday
High: 43 °F
Rain/Snow
LikelySaturday Night
Low: 31 °F
Mostly Cloudy
then Chance
SnowSunday
High: 38 °F
Snow Likely
Sunday Night
Low: 22 °F
Chance Snow
M.L.King Day
High: 34 °F
Sunny
Monday Night
Low: 13 °F
Mostly Clear
Tuesday
High: 22 °F
Mostly Sunny
Tuesday Night
Low: 14 °F
Mostly Clear
Detailed Forecast
Tonight
A 30 percent chance of snow, mainly after 4am. Increasing clouds, with a temperature rising to around 36 by 5am. Wind chill values between 25 and 30. Southwest wind around 6 mph.
Saturday
A chance of snow before 10am, then rain likely between 10am and 4pm, then a slight chance of rain and snow after 4pm. Cloudy, with a high near 43. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
A slight chance of rain and snow before 7pm, then a chance of snow after 1am. Mostly cloudy, with a low around 31. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Snow likely. Cloudy, with a high near 38. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 30 percent chance of snow before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 22. Northwest wind around 6 mph.
M.L.King Day
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Mostly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly cloudy, with a high near 39.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 21.
Friday
A 30 percent chance of snow. Partly sunny, with a high near 32.
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)
3:33 pm EST Jan 16, 2026
7pm EST Jan 16, 2026-6pm EST Jan 23, 2026
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