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Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

30°F

-1°C

Humidity 54%
Wind Speed NW 17 mph
Barometer 30.19 in (1022.5 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 4 Feb 9:56 am EST
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • Today

    Today: Sunny, with a high near 32. Wind chill values between 15 and 25. Northwest wind 10 to 13 mph.

    High: 32 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 14. Northwest wind around 6 mph becoming calm.

    Low: 14 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 31. Wind chill values between 5 and 15. North wind 6 to 8 mph.

    High: 31 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13. Light north wind.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 29. Light and variable wind becoming west around 6 mph in the morning.

    High: 29 °F

    Partly Sunny

  • Friday Night

    Friday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of snow showers before noon. Partly sunny, with a high near 24. Windy.

    High: 24 °F

    Chance Snow
    Showers and
    Blustery then
    Partly Sunny
    and Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 5. Blustery.

    Low: 5 °F

    Mostly Clear
    and Blustery

  • Sunday

    Sunday: Mostly sunny and cold, with a high near 20.

    High: 20 °F

    Cold

Detailed Forecast

Today
Sunny, with a high near 32. Wind chill values between 15 and 25. Northwest wind 10 to 13 mph.
Tonight
Partly cloudy, with a low around 14. Northwest wind around 6 mph becoming calm.
Thursday
Sunny, with a high near 31. Wind chill values between 5 and 15. North wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 13. Light north wind.
Friday
Partly sunny, with a high near 29. Light and variable wind becoming west around 6 mph in the morning.
Friday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 16. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
A 30 percent chance of snow showers before noon. Partly sunny, with a high near 24. Windy.
Saturday Night
Mostly clear, with a low around 5. Blustery.
Sunday
Mostly sunny and cold, with a high near 20.
Sunday Night
Partly cloudy, with a low around 8.
Monday
Mostly sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
 40.81°N 73.11°W (Elev. 98 ft)
Last Update:
7:42 am EST Feb 4, 2026
Forecast Valid:
10am EST Feb 4, 2026-6pm EST Feb 10, 2026
 
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Additional Resources

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