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

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

68°F

20°C

Humidity 47%
Wind Speed SE 10 mph
Barometer 30.26 in (1024.6 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 21 Sep 3:56 pm EDT
Extended Forecast for

Patchogue NYSimilar City Names

  • Tonight

    Tonight: Partly cloudy, with a low around 53. East wind 5 to 8 mph becoming calm in the evening.

    Low: 53 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 72. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. South wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 77. Southwest wind 6 to 10 mph. Chance of precipitation is 20%.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind 5 to 8 mph. Chance of precipitation is 50%.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 53. East wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 72. Light and variable wind becoming south 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 61. South wind around 5 mph.
Tuesday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 77. Southwest wind 6 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind 5 to 8 mph. Chance of precipitation is 50%.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 75.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 62.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 71.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 74.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 63.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 73.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Sunday
A 30 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:
Patchogue NYSimilar City Names
 40.77°N 73°W (Elev. 43 ft)
Last Update:
1:55 pm EDT Sep 21, 2025
Forecast Valid:
4pm EDT Sep 21, 2025-6pm EDT Sep 28, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation