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.

Mostly Cloudy

55°F

13°C

Humidity 72%
Wind Speed SW 16 G 35 mph
Barometer 29.71 in (1006.0 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 26 Mar 7:56 pm EDT
Extended Forecast for

5 Miles SSE Blue Point NY

  • Tonight

    Tonight: Showers, mainly after 11pm. Low around 45. Windy, with a southwest wind 22 to 28 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Windy.
    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers, mainly before 11am. Temperature falling to around 44 by 4pm. North wind 13 to 16 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F⇓

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. North wind 9 to 11 mph.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 39. Wind chill values between 20 and 30. North wind 13 to 16 mph.

    High: 39 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. Northwest wind 7 to 11 mph.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 43. Breezy.

    High: 43 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42. Breezy.

    Low: 42 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers, mainly after 11pm. Low around 45. Windy, with a southwest wind 22 to 28 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers, mainly before 11am. Temperature falling to around 44 by 4pm. North wind 13 to 16 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 33. North wind 9 to 11 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 39. Wind chill values between 20 and 30. North wind 13 to 16 mph.
Saturday Night
Mostly clear, with a low around 33. Northwest wind 7 to 11 mph.
Sunday
Mostly sunny, with a high near 43. Breezy.
Sunday Night
Mostly cloudy, with a low around 42. Breezy.
Monday
Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
A 30 percent chance of rain after 8am. Mostly cloudy, with a high near 49.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 46. Breezy.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 52. Breezy.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 46. Breezy.
Thursday
Mostly cloudy, with a high near 52. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
Last Update:
7:31 pm EDT Mar 26, 2026
Forecast Valid:
8pm EDT Mar 26, 2026-6pm EDT Apr 2, 2026
 
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Additional Resources

Radar & Satellite Image

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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