National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Snow Blowing Snow and Breezy

15°F

-9°C

Humidity 64%
Wind Speed NW 22 G 37 mph
Barometer 29.62 in (1003.1 mb)
Dewpoint 5°F (-15°C)
Visibility 2.00 mi
Wind Chill-3°F (-19°C)
Last update 7 Feb 10:56 am EST
Extended Forecast for

5 Miles SSE Blue Point NY

Wind Advisory until February 8, 12:00am
Extreme Cold Warning February 7, 01:00pm until February 8, 01:00pm
Click here for hazard details and duration
Wind Advisory
Extreme Cold Warning
  •  
    Wind Advisory until February 8, 12:00am

    NOW until 12:00am Sun

    Wind Advisory

  • Today

    High: 27 °F⇓

    Chance Snow
    and Windy

  • Tonight

    Tonight: A 20 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 9. Wind chill values between -5 and -10. Windy, with a northwest wind 31 to 36 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 50 mph.

    Low: 9 °F

    Slight Chance
    Snow and
    Windy

  • Sunday

    Sunday: Sunny, with a high near 21. Wind chill values between -10 and zero. Blustery, with a northwest wind 18 to 21 mph, with gusts as high as 34 mph.

    High: 21 °F

    Sunny and
    Blustery

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 11. Wind chill values between zero and 10. Northwest wind 10 to 17 mph, with gusts as high as 31 mph.

    Low: 11 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 26. Northwest wind 14 to 17 mph.

    High: 26 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Today
A 40 percent chance of snow. Cloudy, with a temperature falling to around 16 by 5pm. Wind chill values between -5 and zero. Windy, with a northwest wind 28 to 31 mph, with gusts as high as 48 mph.
Tonight
A 20 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 9. Wind chill values between -5 and -10. Windy, with a northwest wind 31 to 36 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 50 mph.
Sunday
Sunny, with a high near 21. Wind chill values between -10 and zero. Blustery, with a northwest wind 18 to 21 mph, with gusts as high as 34 mph.
Sunday Night
Mostly clear, with a low around 11. Wind chill values between zero and 10. Northwest wind 10 to 17 mph, with gusts as high as 31 mph.
Monday
Sunny, with a high near 26. Northwest wind 14 to 17 mph.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Partly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A 30 percent chance of rain after 1pm. Partly sunny, with a high near 38.
Wednesday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
Last Update:
6:26 am EST Feb 7, 2026
Forecast Valid:
11am EST Feb 7, 2026-6pm EST Feb 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation