Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
21°F
-6°C
| Humidity | 52% |
| Wind Speed | NW 7 mph |
| Barometer | 30.09 in (1019.0 mb) |
| Dewpoint | 6°F (-14°C) |
| Visibility | 10.00 mi |
| Wind Chill | 12°F (-11°C) |
| Last update | 31 Jan 2:56 pm EST |
Extended Forecast for
Holbrook NY
Cold Weather Advisory January 31, 03:41pm until February 1, 10:00am
Coastal Flood Advisory February 1, 05:00am until February 1, 12:00pm
NOW until 10:00am Sun

Cold Weather Advisory
Tonight

Low: 11 °F
Mostly Cloudy
Sunday

High: 23 °F
Cloudy
Sunday Night

Low: 14 °F
Mostly Cloudy
Monday

High: 30 °F
Mostly Sunny
Monday Night

Low: 12 °F
Mostly Clear
Tuesday

High: 31 °F
Sunny
Tuesday Night

Low: 18 °F
Partly Cloudy
Wednesday

High: 30 °F
Partly Sunny
Detailed Forecast
Tonight
Mostly cloudy, with a low around 11. Wind chill values between -5 and 5. Light north wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 28 mph.
Sunday
Cloudy, with a high near 23. Wind chill values between -5 and 5. North wind 14 to 17 mph, with gusts as high as 34 mph.
Sunday Night
Mostly cloudy, with a low around 14. Wind chill values between zero and 10. Northwest wind 9 to 11 mph, with gusts as high as 26 mph.
Monday
Mostly sunny, with a high near 30. Wind chill values between 5 and 15. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 12. Northwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 30.
Wednesday Night
Partly cloudy, with a low around 15.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
Mostly clear, with a low around 13.
Friday
Partly sunny, with a high near 30.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 15.
Saturday
Mostly sunny, with a high near 24.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Holbrook NY
40.8°N 73.09°W (Elev. 98 ft)
40.8°N 73.09°W (Elev. 98 ft)
1:05 pm EST Jan 31, 2026
3pm EST Jan 31, 2026-6pm EST Feb 7, 2026



