Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

54°F

12°C

Humidity 80%
Wind Speed E 9 mph
Barometer 30.03 in (1016.8 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 21 May 1:56 am EDT
Extended Forecast for

Islip Terrace NY

  • Overnight

    Overnight: A slight chance of sprinkles.  Cloudy, with a low around 52. East wind around 8 mph.

    Low: 52 °F

    Slight Chance
    Sprinkles

  • Wednesday

    Wednesday: A slight chance of showers before 8am, then rain likely, mainly after 2pm.  Cloudy, with a high near 57. East wind 11 to 17 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain.  Low around 50. Breezy, with an east wind 15 to 21 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain and possibly a thunderstorm.  High near 59. East wind 15 to 18 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 59 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and midnight, then a chance of showers after midnight.  Cloudy, with a low around 47. North wind 8 to 10 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers after 2pm.  Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 2am.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of sprinkles. Cloudy, with a low around 52. East wind around 8 mph.
Wednesday
A slight chance of showers before 8am, then rain likely, mainly after 2pm. Cloudy, with a high near 57. East wind 11 to 17 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 50. Breezy, with an east wind 15 to 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain and possibly a thunderstorm. High near 59. East wind 15 to 18 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
Rain likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and midnight, then a chance of showers after midnight. Cloudy, with a low around 47. North wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 61.
Friday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 52.
Memorial Day
Mostly sunny, with a high near 69.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 55.
Tuesday
A 30 percent chance of showers. Mostly cloudy, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Islip Terrace NY
 40.75°N 73.18°W (Elev. 30 ft)
8:54 pm EDT May 20, 2025
2am EDT May 21, 2025-6pm EDT May 27, 2025
 
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Additional Resources

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