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

73°F

23°C

Humidity 76%
Wind Speed S 9 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 1 Oct 11:56 am EDT
Extended Forecast for

Patchogue NYSimilar City Names

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 72. Southwest wind around 9 mph.

    High: 72 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. Southwest wind around 9 mph.

    Low: 64 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 5pm. Mostly sunny, with a high near 76. Southwest wind 9 to 11 mph.

    High: 76 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 59. West wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers before 8am. Mostly sunny, with a high near 69. North wind 8 to 11 mph.

    High: 69 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of rain after 2pm. Partly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny
    then Chance
    Rain

  • Sunday Night

    Sunday Night: A chance of rain before 8pm, then a chance of showers after 8pm. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Chance Rain

  • Monday

    Monday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 72. Southwest wind around 9 mph.
Tonight
Mostly cloudy, with a low around 64. Southwest wind around 9 mph.
Friday
A 30 percent chance of showers after 5pm. Mostly sunny, with a high near 76. Southwest wind 9 to 11 mph.
Friday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 59. West wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 69. North wind 8 to 11 mph.
Saturday Night
Mostly clear, with a low around 54.
Sunday
A 40 percent chance of rain after 2pm. Partly sunny, with a high near 66.
Sunday Night
A chance of rain before 8pm, then a chance of showers after 8pm. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NYSimilar City Names
 40.77°N 73°W (Elev. 43 ft)
Last Update:
5:53 am EDT Oct 1, 2026
Forecast Valid:
12pm EDT Oct 1, 2026-6pm EDT Oct 7, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation