Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

79°F

26°C

Humidity 58%
Wind Speed SE 13 mph
Barometer 30.13 in (1020.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 16 Aug 11:56 am EDT
Extended Forecast for

Patchogue NYSimilar City Names

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. South wind 9 to 13 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely, then showers and possibly a thunderstorm after 2am.  Low around 68. South wind 11 to 15 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 68 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm before 11am, then a chance of showers between 11am and 2pm.  High near 82. South wind 9 to 13 mph becoming northwest in the afternoon.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 69. Calm wind becoming north around 5 mph after midnight.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. North wind around 6 mph becoming west in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 2am.  Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers.  Partly sunny, with a high near 80.

    High: 80 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. South wind 9 to 13 mph.
Tonight
Showers likely, then showers and possibly a thunderstorm after 2am. Low around 68. South wind 11 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers and possibly a thunderstorm before 11am, then a chance of showers between 11am and 2pm. High near 82. South wind 9 to 13 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Partly cloudy, with a low around 69. Calm wind becoming north around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 84. North wind around 6 mph becoming west in the afternoon.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny, with a high near 83.
Wednesday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 71.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 78.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 66.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NYSimilar City Names
 40.77°N 73°W (Elev. 43 ft)
2:19 am EDT Aug 16, 2026
12pm EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
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