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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
59°F
15°C
| Humidity | 83% |
| Wind Speed | E 7 mph |
| Barometer | 30.38 in (1028.5 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 11 Oct 8:56 am EDT |
Extended Forecast for
West Sayville NY
Today
High: 66 °F
Rain Likely
then RainTonight
Low: 55 °F
Rain then
Rain LikelyColumbus Day
High: 68 °F
Chance Rain
then SunnyMonday Night

Low: 54 °F
Mostly Clear
Tuesday

High: 68 °F
Mostly Sunny
Tuesday Night

Low: 60 °F
Partly Cloudy
Wednesday

High: 72 °F
Sunny
Wednesday Night

Low: 52 °F
Mostly Clear
Thursday

High: 64 °F
Mostly Sunny
Detailed Forecast
Today
Rain, mainly after 11am. High near 66. East wind 13 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
Rain and possibly a thunderstorm, mainly before 2am, then a chance of rain and thunderstorms after 2am. Low around 55. East wind 10 to 16 mph becoming north after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Columbus Day
A chance of rain before 8am, then a chance of showers between 8am and 11am. Cloudy through mid morning, then gradual clearing, with a high near 68. North wind 9 to 14 mph. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 54. North wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 68. Light and variable wind becoming south 5 to 10 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 50.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50. Breezy.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 59. Breezy.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
West Sayville NY
40.74°N 73.1°W (Elev. 30 ft)
40.74°N 73.1°W (Elev. 30 ft)
9:06 am EDT Oct 11, 2026
9am EDT Oct 11, 2026-6pm EDT Oct 17, 2026


