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.

Overcast

59°F

15°C

Humidity 90%
Wind Speed NW 8 mph
Barometer 29.76 in (1007.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 7 Nov 9:56 am EST
Extended Forecast for

5 Miles SSE West Sayville NY

  • Today

    Today: Mostly sunny, with a temperature falling to around 60 by 5pm. West wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 65 °F⇓

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. West wind 15 to 17 mph, with gusts as high as 29 mph.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph.

    High: 61 °F

    Sunny and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. West wind 14 to 16 mph, with gusts as high as 26 mph.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57. Breezy, with a west wind 15 to 25 mph.

    High: 57 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. Breezy.

    Low: 48 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

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

    High: 59 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

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

    Low: 51 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a temperature falling to around 60 by 5pm. West wind 11 to 17 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 44. West wind 15 to 17 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 61. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 48. West wind 14 to 16 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 57. Breezy, with a west wind 15 to 25 mph.
Monday Night
Mostly clear, with a low around 48. Breezy.
Tuesday
Sunny, with a high near 59. 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 48.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 53.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 45. Breezy.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 50. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE West Sayville NY
 40.67°N 73.06°W (Elev. 0 ft)
Last Update:
2:00 am EST Nov 7, 2026
Forecast Valid:
10am EST Nov 7, 2026-6pm EST Nov 13, 2026
 
Forecast Discussion
 
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Additional Resources

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