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.

Fair

55°F

13°C

Humidity 87%
Wind Speed NE 7 mph
Barometer 30.31 in (1026.4 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 21 Sep 4:56 am EDT
Extended Forecast for

Poquott NY

  • Today

    Today: Partly sunny, with a high near 68. East wind 9 to 11 mph.

    High: 68 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. East wind 3 to 8 mph.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72. East wind around 6 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. Southwest wind around 8 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 77. Southwest wind around 9 mph. Chance of precipitation is 30%.

    High: 77 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 74.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers. Partly sunny, with a high near 69.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 68. East wind 9 to 11 mph.
Tonight
Mostly clear, with a low around 59. East wind 3 to 8 mph.
Monday
Sunny, with a high near 72. East wind around 6 mph.
Monday Night
Partly cloudy, with a low around 65. Southwest wind around 8 mph.
Tuesday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 77. Southwest wind around 9 mph. Chance of precipitation is 30%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 74.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 64.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 69.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 72.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 66.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Poquott NY
 40.96°N 73.08°W (Elev. 3 ft)
Last Update:
1:52 am EDT Sep 21, 2025
Forecast Valid:
5am EDT Sep 21, 2025-6pm EDT Sep 27, 2025
 
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