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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.

Fair

26°F

-3°C

Humidity 55%
Wind Speed NW 12 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 5 Feb 10:56 am EST
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • Today

    Today: Sunny, with a high near 29. Wind chill values between 20 and 25. Northwest wind 5 to 8 mph.

    High: 29 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 15. Calm wind becoming north around 5 mph after midnight.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 29. Wind chill values between 10 and 20. North wind around 6 mph becoming calm in the afternoon.

    High: 29 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Snow likely, mainly after 1am. Cloudy, with a low around 15. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Slight Chance
    Snow then
    Snow Likely

  • Saturday

    Saturday: Snow likely, mainly before noon, then a slight chance of snow showers after 1pm. Cloudy, with a high near 27. Windy, with a northwest wind 11 to 16 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 27 °F

    Snow Likely
    and Blustery
    then Chance
    Snow and
    Windy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 5. Windy.

    Low: 5 °F

    Partly Cloudy
    and Windy

  • Sunday

    Sunday: Sunny and cold, with a high near 18. Blustery.

    High: 18 °F

    Cold and
    Blustery

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 29. Wind chill values between 20 and 25. Northwest wind 5 to 8 mph.
Tonight
Partly cloudy, with a low around 15. Calm wind becoming north around 5 mph after midnight.
Friday
Mostly cloudy, with a high near 29. Wind chill values between 10 and 20. North wind around 6 mph becoming calm in the afternoon.
Friday Night
Snow likely, mainly after 1am. Cloudy, with a low around 15. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly before noon, then a slight chance of snow showers after 1pm. Cloudy, with a high near 27. Windy, with a northwest wind 11 to 16 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Partly cloudy, with a low around 5. Windy.
Sunday
Sunny and cold, with a high near 18. Blustery.
Sunday Night
Mostly clear, with a low around 7.
Monday
Mostly sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Mostly cloudy, with a high near 35.
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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:
1:31 am EST Feb 5, 2026
Forecast Valid:
11am EST Feb 5, 2026-6pm EST Feb 11, 2026
 
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