Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

19°F

-7°C

Humidity 74%
Wind Speed N 5 mph
Barometer 29.86 in (1011.4 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 6 Feb 1:56 am EST
Extended Forecast for

Blue Point NY

Extreme Cold Watch February 7, 06:00pm until February 8, 01:00pm
Click here for hazard details and duration
Extreme Cold Watch
  • Overnight

    Overnight: Partly cloudy, with a low around 16. Wind chill values between 10 and 15. North wind around 7 mph.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 32. Wind chill values between 10 and 20. North wind 5 to 7 mph becoming light and variable  in the afternoon.

    High: 32 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Snow, mainly after 10pm.  Low around 21. Calm wind becoming northwest around 6 mph after midnight.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow
    then Snow

  • Saturday

    Saturday: Snow, mainly before 1pm.  Temperature falling to around 14 by 5pm. Wind chill values between -5 and 5. Blustery, with a northwest wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 44 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 25 °F

    Snow and
    Blustery

  • Saturday Night

    Saturday Night: Cloudy during the early evening, then gradual clearing, with a low around 5. Blustery, with a northwest wind 18 to 25 mph, with gusts as high as 46 mph.

    Low: 5 °F

    Gradual
    Clearing and
    Blustery

  • Sunday

    Sunday: Sunny and cold, with a high near 19.

    High: 19 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 16. Wind chill values between 10 and 15. North wind around 7 mph.
Friday
Mostly cloudy, with a high near 32. Wind chill values between 10 and 20. North wind 5 to 7 mph becoming light and variable in the afternoon.
Friday Night
Snow, mainly after 10pm. Low around 21. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
Snow, mainly before 1pm. Temperature falling to around 14 by 5pm. Wind chill values between -5 and 5. Blustery, with a northwest wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Saturday Night
Cloudy during the early evening, then gradual clearing, with a low around 5. Blustery, with a northwest wind 18 to 25 mph, with gusts as high as 46 mph.
Sunday
Sunny and cold, with a high near 19.
Sunday Night
Mostly clear, with a low around 8.
Monday
Mostly sunny, with a high near 24.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Sunny, with a high near 30.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 33.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Blue Point NY
 40.75°N 73.04°W (Elev. 30 ft)
2:05 am EST Feb 6, 2026
2am EST Feb 6, 2026-6pm EST Feb 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database