Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

42°F

6°C

Humidity 82%
Wind Speed E 13 G 24 mph
Barometer 30.45 in (1031.0 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 2 Apr 5:56 pm EDT
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • Tonight

    Tonight: A chance of drizzle or light rain, mainly after midnight.  Patchy fog after 10pm.  Otherwise, cloudy, with a low around 39. East wind 5 to 13 mph.  Chance of precipitation is 30%.

    Low: 39 °F

    Chance Light
    Rain and
    Patchy Fog

  • Friday

    Friday: Areas of fog before noon.  Otherwise, mostly cloudy, with a high near 59. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 59 °F

    Areas Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon.  Partly sunny, with a high near 62. Light and variable wind becoming east 5 to 10 mph in the morning.

    High: 62 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 43. East wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers.  High near 58. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 8pm.  Cloudy during the early evening, then gradual clearing, with a low around 40.

    Low: 40 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of drizzle or light rain, mainly after midnight. Patchy fog after 10pm. Otherwise, cloudy, with a low around 39. East wind 5 to 13 mph. Chance of precipitation is 30%.
Friday
Areas of fog before noon. Otherwise, mostly cloudy, with a high near 59. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 49. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Saturday
A 20 percent chance of showers after noon. Partly sunny, with a high near 62. Light and variable wind becoming east 5 to 10 mph in the morning.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 43. East wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday
Showers. High near 58. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 30 percent chance of showers before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 40.
Monday
Mostly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Mostly sunny, with a high near 51.
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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 Apr 2, 2026
6pm EDT Apr 2, 2026-6pm EDT Apr 9, 2026
 
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