Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

74°F

23°C

Humidity 43%
Wind Speed W 16 G 25 mph
Barometer 29.70 in (1005.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 19 Jun 9:56 am EDT
Extended Forecast for

East Islip NY

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 76. West wind around 15 mph, with gusts as high as 26 mph.

    High: 76 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 64. West wind 9 to 14 mph.

    Low: 64 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 79. West wind 15 to 17 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64. Northwest wind 6 to 11 mph.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77. Southwest wind 6 to 11 mph.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 2am.  Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then rain and possibly a thunderstorm after 2pm.  High near 73. Breezy.  Chance of precipitation is 90%.

    High: 73 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Rain before 8pm, then showers likely, mainly between 8pm and 2am.  Low around 65. Breezy.  Chance of precipitation is 80%.

    Low: 65 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: A 30 percent chance of showers before 8am.  Mostly sunny, with a high near 76.

    High: 76 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Juneteenth
Partly sunny, with a high near 76. West wind around 15 mph, with gusts as high as 26 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 64. West wind 9 to 14 mph.
Saturday
Sunny, with a high near 79. West wind 15 to 17 mph.
Saturday Night
Mostly clear, with a low around 64. Northwest wind 6 to 11 mph.
Sunday
Sunny, with a high near 77. Southwest wind 6 to 11 mph.
Sunday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 65.
Monday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then rain and possibly a thunderstorm after 2pm. High near 73. Breezy. Chance of precipitation is 90%.
Monday Night
Rain before 8pm, then showers likely, mainly between 8pm and 2am. Low around 65. Breezy. Chance of precipitation is 80%.
Tuesday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
East Islip NY
 40.7°N 73.19°W (Elev. 0 ft)
9:36 am EDT Jun 19, 2026
10am EDT Jun 19, 2026-6pm EDT Jun 25, 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