Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
25°F
-4°C
| Humidity | 55% |
| Wind Speed | N 10 mph |
| Barometer | 30.09 in (1019.1 mb) |
| Dewpoint | 11°F (-12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 15°F (-9°C) |
| Last update | 5 Feb 9:56 am EST |
Extended Forecast for
Islip Terrace NY
Today
High: 29 °F
Sunny
Tonight
Low: 15 °F
Partly Cloudy
Friday
High: 29 °F
Mostly Cloudy
Friday Night
Low: 17 °F
Slight Chance
Snow then
Snow LikelySaturday
High: 23 °F⇓
Snow Likely
and Blustery
then Chance
Snow and
WindySaturday Night
Low: 4 °F
Partly Cloudy
and WindySunday
High: 19 °F
Cold
Sunday Night
Low: 8 °F
Mostly Clear
Monday
High: 27 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 29. Wind chill values between 15 and 25. North wind 5 to 9 mph becoming light in the afternoon.
Tonight
Partly cloudy, with a low around 15. Calm wind.
Friday
Mostly cloudy, with a high near 29. Wind chill values between 15 and 25. Calm wind becoming north around 5 mph.
Friday Night
Snow likely, mainly after 1am. Cloudy, with a low around 17. Light southwest wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly before noon, then a slight chance of snow showers after 1pm. Cloudy, with a temperature rising to near 23 by 10am, then falling to around 15 during the remainder of the day. Windy, with a northwest wind 9 to 19 mph increasing to 19 to 29 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday Night
Partly cloudy, with a low around 4. Windy.
Sunday
Sunny and cold, with a high near 19.
Sunday Night
Mostly clear, with a low around 8.
Monday
Mostly sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 34.
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)
1:31 am EST Feb 5, 2026
10am EST Feb 5, 2026-6pm EST Feb 11, 2026
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