Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
21°F
-6°C
| Humidity | 45% |
| Wind Speed | W 17 G 28 mph |
| Barometer | 29.94 in (1014.0 mb) |
| Dewpoint | 3°F (-16°C) |
| Visibility | 10.00 mi |
| Wind Chill | 7°F (-14°C) |
| Last update | 27 Jan 3:56 pm EST |
Extended Forecast for
Islip Terrace NY
This Afternoon

High: 22 °F
Chance
FlurriesTonight

Low: 9 °F
Chance
FlurriesWednesday

High: 23 °F
Increasing
CloudsWednesday Night

Low: 9 °F
Mostly Cloudy
Thursday

High: 22 °F
Sunny
Thursday Night

Low: 7 °F
Mostly Clear
Friday

High: 19 °F
Cold
Friday Night

Low: 4 °F
Partly Cloudy
Saturday

High: 22 °F
Partly Sunny
Detailed Forecast
This Afternoon
A chance of flurries. Mostly cloudy, with a high near 22. Wind chill values between 10 and 15. West wind around 13 mph, with gusts as high as 24 mph.
Tonight
A chance of flurries before 7pm. Partly cloudy, with a low around 9. Wind chill values between zero and 5. West wind around 9 mph, with gusts as high as 23 mph.
Wednesday
Increasing clouds, with a high near 23. Wind chill values between zero and 10. West wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 9. Wind chill values between zero and 5. West wind 3 to 6 mph.
Thursday
Sunny, with a high near 22. West wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 7.
Friday
Sunny and cold, with a high near 19.
Friday Night
Partly cloudy, with a low around 4.
Saturday
Partly sunny, with a high near 22.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 15.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 28. Blustery.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 32.
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)
12:48 pm EST Jan 27, 2026
4pm EST Jan 27, 2026-6pm EST Feb 3, 2026



