National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

79°F

26°C

Humidity 74%
Wind Speed SW 7 mph
Barometer 29.99 in (1015.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 28 Aug 4:56 pm EDT
Extended Forecast for

Poquott NY

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 67. North wind 5 to 13 mph.

    Low: 67 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 77. North wind 5 to 10 mph becoming light in the afternoon.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. Southwest wind 3 to 6 mph.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 80. Southwest wind 6 to 11 mph.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind 9 to 11 mph. Chance of precipitation is 50%.

    Low: 72 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, with thunderstorms also possible after 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 67. North wind 5 to 13 mph.
Saturday
Sunny, with a high near 77. North wind 5 to 10 mph becoming light in the afternoon.
Saturday Night
Mostly clear, with a low around 68. Southwest wind 3 to 6 mph.
Sunday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 80. Southwest wind 6 to 11 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind 9 to 11 mph. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 79.
Monday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 69.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 79.
Tuesday Night
A chance of showers, with thunderstorms also possible after 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 81.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 71.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 82.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 69.
Friday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Poquott NY
 40.96°N 73.08°W (Elev. 3 ft)
Last Update:
2:11 pm EDT Aug 28, 2026
Forecast Valid:
5pm EDT Aug 28, 2026-6pm EDT Sep 4, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation