Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
58°F
14°C
| Humidity | 48% |
| Wind Speed | Calm |
| Barometer | 29.94 in (1013.9 mb) |
| Dewpoint | 38°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 11 Nov 10:56 am EST |
Extended Forecast for
Stony Brook NY
Veterans Day

High: 60 °F
Mostly Sunny
Tonight

Low: 47 °F
Decreasing
CloudsThursday
High: 60 °F
Chance Rain
then RainThursday Night

Low: 43 °F
Rain
Friday

High: 50 °F
Rain
Friday Night

Low: 37 °F
Chance Rain
Saturday

High: 49 °F
Partly Sunny
Saturday Night

Low: 37 °F
Mostly Cloudy
Sunday

High: 51 °F
Mostly Sunny
Detailed Forecast
Veterans Day
Mostly sunny, with a high near 60. West wind 3 to 7 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 47. Calm wind becoming east 5 to 7 mph after midnight.
Thursday
A chance of rain and thunderstorms before 1pm, then rain and possibly a thunderstorm between 1pm and 4pm, then rain likely after 4pm. High near 60. East wind 8 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain. Low around 43. North wind 11 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 50. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 51.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Stony Brook NY
40.92°N 73.12°W (Elev. 112 ft)
40.92°N 73.12°W (Elev. 112 ft)
8:57 am EST Nov 11, 2026
11am EST Nov 11, 2026-6pm EST Nov 17, 2026


