Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
69°F
21°C
| Humidity | 41% |
| Wind Speed | SW 13 mph |
| Barometer | 30.26 in (1024.5 mb) |
| Dewpoint | 44°F (7°C) |
| Visibility | 10.00 mi |
| Last update | 9 Jun 8:56 am EDT |
Extended Forecast for
Holbrook NY
Today

High: 78 °F
Sunny
Tonight

Low: 62 °F
Increasing
CloudsWednesday

High: 74 °F
Chance
ShowersWednesday Night

Low: 66 °F
Showers
LikelyThursday
High: 88 °F
Mostly Sunny
then Chance
T-stormsThursday Night
Low: 69 °F
Chance
T-storms then
Chance
ShowersFriday

High: 85 °F
Mostly Sunny
Friday Night

Low: 66 °F
Chance
ShowersSaturday

High: 84 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 78. South wind 10 to 15 mph.
Tonight
Increasing clouds, with a low around 62. Southwest wind 7 to 13 mph.
Wednesday
A chance of showers between 11am and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 74. South wind 8 to 13 mph. Chance of precipitation is 50%.
Wednesday Night
Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers and thunderstorms after 2am. Cloudy, then gradually becoming partly cloudy, with a low around 66. Southwest wind 9 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Southwest wind 7 to 9 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 85.
Friday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 64.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Holbrook NY
40.8°N 73.06°W (Elev. 66 ft)
40.8°N 73.06°W (Elev. 66 ft)
3:26 am EDT Jun 9, 2026
9am EDT Jun 9, 2026-6pm EDT Jun 15, 2026



