Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Drizzle Fog/Mist

60°F

16°C

Humidity 90%
Wind Speed NE 20 G 36 mph
Barometer 29.93 in (1013.6 mb)
Dewpoint 57°F (14°C)
Visibility 6.00 mi
Last update 13 Oct 6:56 pm EDT
Extended Forecast for

5 Miles SSE Blue Point NY

Coastal Flood Warning October 13, 07:36pm until October 13, 08:00pm
Click here for hazard details and duration
...
  •  
    Coastal Flood Warning October 13, 07:36pm until October 13, 08:00pm

    NOW until 8:00pm Mon

    Coastal Flood Warning

  • Tonight

    Low: 59 °F

    Rain and
    Areas Fog

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after 5pm.  Mostly cloudy, with a high near 63. Windy, with a northeast wind 22 to 26 mph.

    High: 63 °F

    Chance Rain
    and Windy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 8pm.  Mostly cloudy, with a low around 55. Breezy, with a north wind 14 to 20 mph.

    Low: 55 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65. North wind 15 to 18 mph.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. Breezy, with a north wind 23 to 25 mph.

    Low: 46 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 59. Breezy.

    High: 59 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. Breezy.

    Low: 46 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Sunny, with a high near 61. Breezy.

    High: 61 °F

    Sunny and
    Breezy then
    Sunny

Detailed Forecast

Tonight
Rain. Areas of fog before 2am. Low around 59. Windy, with a northeast wind 30 to 33 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 30 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 63. Windy, with a northeast wind 22 to 26 mph.
Tuesday Night
A 30 percent chance of rain, mainly before 8pm. Mostly cloudy, with a low around 55. Breezy, with a north wind 14 to 20 mph.
Wednesday
Mostly sunny, with a high near 65. North wind 15 to 18 mph.
Wednesday Night
Mostly clear, with a low around 46. Breezy, with a north wind 23 to 25 mph.
Thursday
Sunny, with a high near 59. Breezy.
Thursday Night
Mostly clear, with a low around 46. Breezy.
Friday
Sunny, with a high near 61. Breezy.
Friday Night
Mostly clear, with a low around 48.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 56. Breezy.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 66. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
2:12 pm EDT Oct 13, 2025
7pm EDT Oct 13, 2025-6pm EDT Oct 20, 2025
 
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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