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

59°F

15°C

Humidity 90%
Wind Speed N 3 mph
Barometer 30.17 in (1021.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 2 Sep 3:56 am EDT
Extended Forecast for

Patchogue NY

  • Today

    Today: Sunny, with a high near 75. Northeast wind 6 to 10 mph becoming east in the afternoon.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Southeast wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. South wind around 6 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Light south wind increasing to 6 to 11 mph in the morning.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 8am. Mostly sunny, with a high near 78.

    High: 78 °F

    Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 8pm. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 75. Northeast wind 6 to 10 mph becoming east in the afternoon.
Tonight
Partly cloudy, with a low around 57. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 75. Calm wind becoming southeast 5 to 8 mph in the morning.
Wednesday Night
Mostly clear, with a low around 60. South wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 76. Light south wind increasing to 6 to 11 mph in the morning.
Thursday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 66.
Friday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 78.
Friday Night
A 30 percent chance of showers after 8pm. Partly cloudy, with a low around 67.
Saturday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 80.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NY
 40.77°N 73°W (Elev. 43 ft)
Last Update:
1:59 am EDT Sep 2, 2025
Forecast Valid:
4am EDT Sep 2, 2025-6pm EDT Sep 8, 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