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

66°F

19°C

Humidity 81%
Wind Speed SE 10 mph
Barometer 29.97 in (1014.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 13 Oct 1:56 pm EDT
Extended Forecast for

Patchogue NYSimilar City Names

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 68. South wind around 10 mph.

    High: 68 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Southwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. West wind around 10 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54. North wind 5 to 8 mph.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 64. North wind 7 to 9 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely after 2am. Increasing clouds, with a low around 50. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers. High near 69. Chance of precipitation is 90%.

    High: 69 °F

    Showers

  • Friday Night

    Friday Night: Showers likely before 8pm. Partly cloudy, with a low around 43. Breezy. Chance of precipitation is 60%.

    Low: 43 °F

    Showers
    Likely then
    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 54. Breezy.

    High: 54 °F

    Sunny and
    Breezy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 68. South wind around 10 mph.
Tonight
Partly cloudy, with a low around 63. Southwest wind around 11 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 77. West wind around 10 mph.
Wednesday Night
Mostly cloudy, with a low around 54. North wind 5 to 8 mph.
Thursday
Sunny, with a high near 64. North wind 7 to 9 mph.
Thursday Night
Showers likely after 2am. Increasing clouds, with a low around 50. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers. High near 69. Chance of precipitation is 90%.
Friday Night
Showers likely before 8pm. Partly cloudy, with a low around 43. Breezy. Chance of precipitation is 60%.
Saturday
Sunny, with a high near 54. Breezy.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NYSimilar City Names
 40.77°N 73°W (Elev. 43 ft)
Last Update:
2:02 am EDT Oct 13, 2026
Forecast Valid:
2pm EDT Oct 13, 2026-6pm EDT Oct 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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