


Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
28°F
-2°C
Humidity | 53% |
Wind Speed | Calm |
Barometer | 30.54 in (1034.3 mb) |
Dewpoint | 13°F (-11°C) |
Visibility | 10.00 mi |
Last update | 15 Feb 2:56 am EST |
Extended Forecast for
Stony Brook NY
Overnight
Low: 26 °F
Mostly Cloudy
Saturday
High: 37 °F
Partly Sunny
then Snow
LikelySaturday Night
Low: 33 °F⇑
Wintry Mix
Sunday
High: 48 °F
Rain
Sunday Night
Low: 31 °F
Breezy.
Chance
Showers then
Mostly ClearWashington's Birthday
High: 33 °F
Mostly Sunny
and BreezyMonday Night
Low: 17 °F
Mostly Clear
and Breezy
then Mostly
ClearTuesday
High: 29 °F
Sunny
Tuesday Night
Low: 16 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 26. Calm wind.
Saturday
Snow likely, mainly after 5pm. Mostly cloudy, with a high near 37. Wind chill values between 20 and 30. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
Rain, snow, and sleet before 7pm, then rain and sleet between 7pm and 1am, then rain after 1am. Temperature rising to around 38 by 4am. East wind 7 to 14 mph. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.
Sunday
Rain, mainly before 5pm. High near 48. East wind 9 to 13 mph becoming south in the afternoon. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Sunday Night
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Breezy, with a west wind 21 to 25 mph.
Washington's Birthday
Mostly sunny, with a high near 33. Breezy.
Monday Night
Mostly clear, with a low around 17. Breezy.
Tuesday
Sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 16.
Wednesday
Partly sunny, with a high near 30.
Wednesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 18.
Thursday
Snow likely. Mostly cloudy, with a high near 29. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 19.
Friday
A 30 percent chance of snow showers. Mostly sunny, with a high near 32.
Additional Forecasts and Information
Click Map For Forecast
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)
11:48 pm EST Feb 14, 2025
3am EST Feb 15, 2025-6pm EST Feb 21, 2025