Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
60°F
16°C
| Humidity | 41% |
| Wind Speed | W 10 G 20 mph |
| Barometer | 29.92 in (1013.0 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 11 Nov 11:56 am EST |
Extended Forecast for
Sayville NY
Veterans Day

High: 60 °F
Mostly Sunny
Tonight

Low: 49 °F
Increasing
CloudsThursday

High: 60 °F
Rain Likely
Thursday Night

Low: 44 °F
Rain
Friday

High: 50 °F
Rain
Friday Night

Low: 39 °F
Chance Rain
Saturday

High: 48 °F
Partly Sunny
Saturday Night

Low: 37 °F
Partly Cloudy
Sunday

High: 51 °F
Mostly Sunny
Detailed Forecast
Veterans Day
Mostly sunny, with a high near 60. Southwest wind around 7 mph.
Tonight
Increasing clouds, with a low around 49. Light and variable wind becoming east 5 to 9 mph in the evening.
Thursday
A chance of rain and thunderstorms before 1pm, then rain likely and possibly a thunderstorm between 1pm and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 60. East wind 11 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain. Low around 44. North wind 11 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 50. North wind around 17 mph. Chance of precipitation is 80%. 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 39.
Saturday
Partly sunny, with a high near 48.
Saturday Night
Partly 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 35.
Tuesday
Sunny, with a high near 51.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Sayville NY
40.73°N 73.07°W (Elev. 16 ft)
40.73°N 73.07°W (Elev. 16 ft)
8:57 am EST Nov 11, 2026
12pm EST Nov 11, 2026-6pm EST Nov 17, 2026


