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

66°F

19°C

Humidity 73%
Wind Speed W 10 mph
Barometer 29.75 in (1007.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Oct 10:56 pm EDT
Extended Forecast for

5 Miles SSE Blue Point NY

  • Tonight

    Tonight: Showers likely before 2am, then rain likely after 2am. Cloudy, with a low around 51. Windy, with a northwest wind 16 to 21 mph increasing to 24 to 29 mph after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Showers
    Likely and
    Windy

  • Saturday

    Saturday: Rain likely before 11am. Mostly cloudy, with a high near 53. Windy, with a north wind 28 to 32 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Windy. Rain
    Likely then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. Windy, with a north wind 25 to 28 mph.

    Low: 45 °F

    Mostly Clear
    and Windy

  • Sunday

    Sunday: Sunny, with a high near 54. Breezy, with a northeast wind 15 to 24 mph.

    High: 54 °F

    Sunny and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. Breezy, with a northeast wind 16 to 25 mph.

    Low: 50 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 58. Windy.

    High: 58 °F

    Partly Sunny
    and Windy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 52. Windy.

    Low: 52 °F

    Mostly Cloudy
    and Windy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 61. Windy.

    High: 61 °F

    Mostly Cloudy
    and Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55. Windy.

    Low: 55 °F

    Mostly Cloudy
    and Windy

Detailed Forecast

Tonight
Showers likely before 2am, then rain likely after 2am. Cloudy, with a low around 51. Windy, with a northwest wind 16 to 21 mph increasing to 24 to 29 mph after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain likely before 11am. Mostly cloudy, with a high near 53. Windy, with a north wind 28 to 32 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly clear, with a low around 45. Windy, with a north wind 25 to 28 mph.
Sunday
Sunny, with a high near 54. Breezy, with a northeast wind 15 to 24 mph.
Sunday Night
Mostly clear, with a low around 50. Breezy, with a northeast wind 16 to 25 mph.
Monday
Partly sunny, with a high near 58. Windy.
Monday Night
Mostly cloudy, with a low around 52. Windy.
Tuesday
Mostly cloudy, with a high near 61. Windy.
Tuesday Night
Mostly cloudy, with a low around 55. Windy.
Wednesday
Mostly sunny, with a high near 61. Windy.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 54. Windy.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 59. Windy.
Thursday Night
Mostly cloudy, with a low around 53. Breezy.
Friday
Mostly sunny, with a high near 62. 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:
7:27 pm EDT Oct 16, 2026
Forecast Valid:
11pm EDT Oct 16, 2026-6pm EDT Oct 23, 2026
 
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Additional Resources

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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