Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Rain Fog/Mist and Windy

59°F

15°C

Humidity 90%
Wind Speed NE 26 G 40 mph
Barometer 29.86 in (1010.9 mb)
Dewpoint 56°F (13°C)
Visibility 5.00 mi
Last update 13 Oct 3:56 am EDT
Extended Forecast for

Islip NY

Wind Advisory October 13, 04:54am until October 13, 06:00pm
Coastal Flood Warning October 13, 04:54am until October 13, 07:00pm
Click here for hazard details and duration
Wind Advisory
Coastal Flood Warning
  •  
    Wind Advisory October 13, 04:54am until October 13, 06:00pm
    Coastal Flood Warning October 13, 04:54am until October 13, 07:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 55 °F

    Rain and
    Breezy

  • Columbus Day

    Columbus Day: Rain, with thunderstorms also possible after 11am.  High near 63. Breezy, with a northeast wind 22 to 24 mph, with gusts as high as 38 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 63 °F

    Rain and
    Breezy

  • Monday Night

    Monday Night: Rain and possibly a thunderstorm before 11pm, then rain likely.  Low around 54. Breezy, with a northeast wind 18 to 22 mph, with gusts as high as 32 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: A 30 percent chance of rain.  Mostly cloudy, with a high near 63. North wind around 16 mph, with gusts as high as 26 mph.

    High: 63 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 53. North wind 8 to 11 mph.

    Low: 53 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Overnight
Rain. Low around 55. Breezy, with a northeast wind around 23 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Columbus Day
Rain, with thunderstorms also possible after 11am. High near 63. Breezy, with a northeast wind 22 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Rain and possibly a thunderstorm before 11pm, then rain likely. Low around 54. Breezy, with a northeast wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 63. North wind around 16 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly cloudy, with a low around 53. North wind 8 to 11 mph.
Wednesday
Mostly sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 59.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Islip NY
 40.73°N 73.25°W (Elev. 13 ft)
4:51 am EDT Oct 13, 2025
4am EDT Oct 13, 2025-6pm EDT Oct 19, 2025
 
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Additional Resources

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Hourly Weather Forecast

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