News Headlines
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
55°F
13°C
| Humidity | 33% |
| Wind Speed | N 8 mph |
| Barometer | 30.56 in (1035.0 mb) |
| Dewpoint | 26°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 53°F (12°C) |
| Last update | 18 Oct 1:56 pm EDT |
Extended Forecast for
Sayville NY
This Afternoon
High: 57 °F
Sunny
Tonight
Low: 42 °F
Mostly Clear
Monday
High: 62 °F
Increasing
CloudsMonday Night
Low: 45 °F
Mostly Cloudy
Tuesday
High: 64 °F
Partly Sunny
Tuesday Night
Low: 47 °F
Partly Cloudy
then Partly
Cloudy and
BreezyWednesday
High: 60 °F
Mostly Sunny
and Breezy
then Mostly
SunnyWednesday Night
Low: 45 °F
Mostly Cloudy
Thursday
High: 63 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 57. Northeast wind around 8 mph.
Tonight
Mostly clear, with a low around 42. Northeast wind 5 to 7 mph.
Monday
Increasing clouds, with a high near 62. Northeast wind 10 to 14 mph.
Monday Night
Mostly cloudy, with a low around 45. North wind 11 to 16 mph.
Tuesday
Partly sunny, with a high near 64. North wind 16 to 18 mph, with gusts as high as 29 mph.
Tuesday Night
Partly cloudy, with a low around 47. Breezy.
Wednesday
Mostly sunny, with a high near 60. Breezy.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 57.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Sayville NY
40.73°N 73.07°W (Elev. 16 ft)
40.73°N 73.07°W (Elev. 16 ft)
2:35 pm EDT Oct 18, 2026
2pm EDT Oct 18, 2026-6pm EDT Oct 24, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
