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

    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.

    High: 66 °F

    Rain Likely
    then Rain

  • Tonight

    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.

    Low: 55 °F

    Rain then
    Rain Likely

  • Columbus Day

    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%.

    High: 68 °F

    Chance Rain
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. North wind 3 to 5 mph.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 64.

    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.
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ABOUT THIS FORECAST

 
Point Forecast:
West Sayville NY
 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
 
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Additional Resources

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