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.

Light Rain

61°F

16°C

Humidity 97%
Wind Speed Calm
Barometer 29.82 in (1009.8 mb)
Dewpoint 60°F (16°C)
Visibility 8.00 mi
Last update 6 Nov 9:56 pm EST
Extended Forecast for

5 Miles S Blue Point NY

  • Tonight

    Tonight: Rain likely, mainly before 1am. Mostly cloudy, with a low around 56. Southwest wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Rain Likely

  • Saturday

    Saturday: Sunny, with a high near 62. West wind 8 to 17 mph.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49. Breezy, with a west wind 21 to 23 mph.

    Low: 49 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny, with a high near 59. Breezy, with a west wind 20 to 22 mph.

    High: 59 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. Breezy, with a west wind 23 to 25 mph.

    Low: 51 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 57. Windy.

    High: 57 °F

    Sunny and
    Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 49. Breezy.

    Low: 49 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. Breezy.

    High: 60 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Rain likely, mainly before 1am. Mostly cloudy, with a low around 56. Southwest wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 62. West wind 8 to 17 mph.
Saturday Night
Mostly clear, with a low around 49. Breezy, with a west wind 21 to 23 mph.
Sunday
Sunny, with a high near 59. Breezy, with a west wind 20 to 22 mph.
Sunday Night
Mostly clear, with a low around 51. Breezy, with a west wind 23 to 25 mph.
Monday
Sunny, with a high near 57. Windy.
Monday Night
Mostly clear, with a low around 49. Breezy.
Tuesday
Mostly sunny, with a high near 60. Breezy.
Tuesday Night
Mostly clear, with a low around 51.
Veterans Day
Mostly sunny, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Partly sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Blue Point NY
 40.68°N 73.02°W (Elev. 0 ft)
Last Update:
7:33 pm EST Nov 6, 2026
Forecast Valid:
10pm EST Nov 6, 2026-6pm EST Nov 13, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation