Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Rain Fog/Mist

57°F

14°C

Humidity 90%
Wind Speed N 9 mph
Barometer 30.12 in (1019.9 mb)
Dewpoint 54°F (12°C)
Visibility 2.00 mi
Last update 4 Oct 5:56 pm EDT
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • Tonight

    Tonight: Showers, mainly before 8pm.  Steady temperature around 57. Northeast wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 68. Breezy, with a northwest wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon.

    High: 68 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Monday Night

    Monday Night: Clear, with a low around 44. Northwest wind 9 to 16 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. Northwest wind around 9 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 45. Light west wind.

    Low: 45 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers, mainly before 8pm. Steady temperature around 57. Northeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Partly sunny, then gradually becoming sunny, with a high near 68. Breezy, with a northwest wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon.
Monday Night
Clear, with a low around 44. Northwest wind 9 to 16 mph.
Tuesday
Sunny, with a high near 60. Northwest wind around 9 mph.
Tuesday Night
Clear, with a low around 45. Light west wind.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
 40.78°N 73.09°W (Elev. 49 ft)
2:27 pm EDT Oct 4, 2026
6pm EDT Oct 4, 2026-6pm EDT Oct 11, 2026
 
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