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.

Overcast

22°F

-6°C

Humidity 75%
Wind Speed Calm
Barometer 30.10 in (1019.5 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 14 Feb 2:56 am EST
Extended Forecast for

Blue Point NY

  • Overnight

    Overnight: A 20 percent chance of snow showers after 4am. Mostly cloudy, with a steady temperature around 27. Wind chill values between 20 and 25. West wind around 6 mph.

    Low: 27 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 39. Wind chill values between 20 and 30. West wind 6 to 10 mph.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Light west wind.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 37. Calm wind becoming northeast around 6 mph in the morning.

    High: 37 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 29. East wind around 6 mph.

    Low: 29 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow showers after 4am. Mostly cloudy, with a steady temperature around 27. Wind chill values between 20 and 25. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 39. Wind chill values between 20 and 30. West wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 25. Light west wind.
Sunday
Partly sunny, with a high near 37. Calm wind becoming northeast around 6 mph in the morning.
Sunday Night
A 40 percent chance of snow, mainly after 1am. Mostly cloudy, with a low around 29. East wind around 6 mph.
Washington's Birthday
Partly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A 50 percent chance of rain. Cloudy, with a high near 42.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 41.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 28.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Blue Point NY
 40.75°N 73.04°W (Elev. 30 ft)
Last Update:
1:38 am EST Feb 14, 2026
Forecast Valid:
3am EST Feb 14, 2026-6pm EST Feb 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation