Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fog/Mist

58°F

14°C

Humidity 100%
Wind Speed W 3 mph
Barometer 29.76 in (1007.6 mb)
Dewpoint 58°F (14°C)
Visibility 5.00 mi
Last update 7 Nov 5:56 am EST
Extended Forecast for

Setauket-East Setauket NY

  • Today

    Today: Mostly sunny, with a high near 64. Light west wind increasing to 13 to 18 mph in the morning.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers between 1am and 4am.  Partly cloudy, with a low around 44. Northwest wind 15 to 18 mph.  Chance of precipitation is 20%.

    Low: 44 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 62. Breezy, with a west wind 14 to 20 mph.

    High: 62 °F

    Sunny and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. West wind 13 to 16 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58. West wind 14 to 16 mph, with gusts as high as 28 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 64. Light west wind increasing to 13 to 18 mph in the morning.
Tonight
A slight chance of showers between 1am and 4am. Partly cloudy, with a low around 44. Northwest wind 15 to 18 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 62. Breezy, with a west wind 14 to 20 mph.
Sunday Night
Mostly clear, with a low around 45. West wind 13 to 16 mph.
Monday
Sunny, with a high near 58. West wind 14 to 16 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 44.
Veterans Day
Mostly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
A 30 percent chance of rain. Mostly sunny, with a high near 56.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Setauket-East Setauket NY
 40.92°N 73.12°W (Elev. 112 ft)
2:00 am EST Nov 7, 2026
6am EST Nov 7, 2026-6pm EST Nov 13, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database