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

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

30°F

-1°C

Humidity 36%
Wind Speed NW 10 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 2 Feb 5:56 pm EST
Extended Forecast for

5 Miles SSE Blue Point NY

  • Tonight

    Tonight: Mostly clear, with a low around 15. Wind chill values between 5 and 10. Northwest wind 9 to 13 mph.

    Low: 15 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. Wind chill values between 5 and 15. West wind 8 to 11 mph.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of light snow, mainly between 1am and 4am. Mostly cloudy, with a low around 22. Wind chill values between 15 and 20. West wind 8 to 11 mph.

    Low: 22 °F

    Mostly Cloudy
    then Chance
    Light Snow

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 34. Wind chill values between 10 and 20. Northwest wind 9 to 13 mph.

    High: 34 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 16. North wind around 10 mph.

    Low: 16 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of snow after 1pm. Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 11. Windy.

    Low: 11 °F

    Chance Snow
    and Windy

Detailed Forecast

Tonight
Mostly clear, with a low around 15. Wind chill values between 5 and 10. Northwest wind 9 to 13 mph.
Tuesday
Mostly sunny, with a high near 34. Wind chill values between 5 and 15. West wind 8 to 11 mph.
Tuesday Night
A 30 percent chance of light snow, mainly between 1am and 4am. Mostly cloudy, with a low around 22. Wind chill values between 15 and 20. West wind 8 to 11 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 34. Wind chill values between 10 and 20. Northwest wind 9 to 13 mph.
Wednesday Night
Partly cloudy, with a low around 16. North wind around 10 mph.
Thursday
Mostly sunny, with a high near 27.
Thursday Night
Partly cloudy, with a low around 18.
Friday
A 30 percent chance of snow after 1pm. Partly sunny, with a high near 31.
Friday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 11. Windy.
Saturday
Mostly sunny and cold, with a high near 19. Windy.
Saturday Night
Partly cloudy, with a low around 10. Windy.
Sunday
Partly sunny and cold, with a high near 20. Windy.
Sunday Night
Partly cloudy, with a low around 12. Blustery.
Monday
Mostly sunny, with a high near 23. Blustery.
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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:
1:22 pm EST Feb 2, 2026
Forecast Valid:
6pm EST Feb 2, 2026-6pm EST Feb 9, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation