Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
51°F
11°C
| Humidity | 35% |
| Wind Speed | NW 17 G 25 mph |
| Barometer | 30.00 in (1016.1 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 6 Apr 2:56 pm EDT |
Extended Forecast for
Holbrook NY
Tonight

Low: 39 °F
Chance
ShowersTuesday
High: 52 °F
Partly Sunny
then Slight
Chance
ShowersTuesday Night

Low: 30 °F
Mostly Clear
Wednesday

High: 47 °F
Sunny
Wednesday Night

Low: 33 °F
Mostly Clear
Thursday

High: 50 °F
Mostly Sunny
Thursday Night

Low: 40 °F
Partly Cloudy
Friday

High: 59 °F
Mostly Sunny
Friday Night

Low: 46 °F
Partly Cloudy
Detailed Forecast
Tonight
A 30 percent chance of showers, mainly between 11pm and 5am. Mostly cloudy, with a low around 39. West wind 5 to 7 mph becoming calm in the evening.
Tuesday
A slight chance of showers before 8am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 52. Northwest wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 30. Wind chill values between 20 and 25. North wind around 10 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 47. Wind chill values between 20 and 30 early. North wind around 6 mph becoming east in the afternoon.
Wednesday Night
Mostly clear, with a low around 33. Calm wind.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Partly sunny, with a high near 63.
Additional Forecasts and Information
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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)
2:19 pm EDT Apr 6, 2026
3pm EDT Apr 6, 2026-6pm EDT Apr 13, 2026


