Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fog/Mist

63°F

17°C

Humidity 97%
Wind Speed SW 9 mph
Barometer 29.85 in (1010.8 mb)
Dewpoint 62°F (17°C)
Visibility 6.00 mi
Last update 6 Nov 5:56 am EST
Extended Forecast for

Islip NY

  • Today

    Today: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  High near 66. Southwest wind 7 to 10 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 66 °F

    Heavy Rain

  • Tonight

    Tonight: Rain, mainly before 1am.  Low around 53. Light west wind.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 64. West wind 5 to 11 mph.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43. West wind 11 to 14 mph, with gusts as high as 25 mph.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61. West wind 13 to 15 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

Today
Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 66. Southwest wind 7 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Rain, mainly before 1am. Low around 53. Light west wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 64. West wind 5 to 11 mph.
Saturday Night
Partly cloudy, with a low around 43. West wind 11 to 14 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 61. West wind 13 to 15 mph.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 42.
Veterans Day
Sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Islip NY
 40.73°N 73.22°W (Elev. 7 ft)
2:56 am EST Nov 6, 2026
6am EST Nov 6, 2026-6pm EST Nov 12, 2026
 
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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