Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Thunderstorm Rain
52°F
11°C
| Humidity | 75% |
| Wind Speed | S 12 G 24 mph |
| Barometer | 29.44 in (996.9 mb) |
| Dewpoint | 44°F (7°C) |
| Visibility | 7.00 mi |
| Wind Chill | 48°F (9°C) |
| Last update | 15 Nov 8:56 pm EST |
Extended Forecast for
Stony Brook NY
Tonight
Low: 47 °F⇑
Showers
Sunday
High: 55 °F⇓
Decreasing
Clouds and
BreezySunday Night
Low: 33 °F
Partly Cloudy
and BreezyMonday
High: 46 °F
Mostly Sunny
Monday Night
Low: 36 °F
Mostly Clear
Tuesday
High: 48 °F
Mostly Sunny
Tuesday Night
Low: 37 °F
Mostly Cloudy
Wednesday
High: 49 °F
Mostly Sunny
Wednesday Night
Low: 36 °F
Partly Cloudy
Detailed Forecast
Tonight
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Temperature rising to around 53 by 4am. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 55 by 10am, then falling to around 47 during the remainder of the day. Breezy, with a west wind 14 to 22 mph, with gusts as high as 40 mph.
Sunday Night
Partly cloudy, with a low around 33. Wind chill values between 20 and 30. Breezy, with a west wind 21 to 23 mph, with gusts as high as 33 mph.
Monday
Mostly sunny, with a high near 46. Wind chill values between 20 and 30 early. West wind around 18 mph, with gusts as high as 31 mph.
Monday Night
Mostly clear, with a low around 36. West wind 14 to 17 mph.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 40.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 48.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 59.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Stony Brook NY
40.92°N 73.15°W (Elev. 36 ft)
40.92°N 73.15°W (Elev. 36 ft)
6:02 pm EST Nov 15, 2025
9pm EST Nov 15, 2025-6pm EST Nov 22, 2025
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