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.

33°F

1°C

Humidity 75%
Wind Speed S 10 mph
Barometer 29.76 in (1007.9 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 25 Feb 4:56 am EST
Extended Forecast for

Blue Point NY

  • Overnight

    Overnight: A 50 percent chance of snow. Mostly cloudy, with a steady temperature around 31. Wind chill values between 20 and 25. South wind around 11 mph, with gusts as high as 23 mph.

    Low: 31 °F

    Chance Snow

  • Wednesday

    Wednesday: Rain and snow before 1pm, then a slight chance of rain between 1pm and 4pm. High near 39. Wind chill values between 25 and 30. Southwest wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 39 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. Southwest wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after 1pm. Partly sunny, with a high near 37. Wind chill values between 25 and 35. West wind around 6 mph.

    High: 37 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Slight Chance
    Snow

  • Friday

    Friday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of snow. Mostly cloudy, with a steady temperature around 31. Wind chill values between 20 and 25. South wind around 11 mph, with gusts as high as 23 mph.
Wednesday
Rain and snow before 1pm, then a slight chance of rain between 1pm and 4pm. High near 39. Wind chill values between 25 and 30. Southwest wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Wednesday Night
Partly cloudy, with a low around 30. Southwest wind 7 to 9 mph, with gusts as high as 20 mph.
Thursday
A 30 percent chance of snow after 1pm. Partly sunny, with a high near 37. Wind chill values between 25 and 35. West wind around 6 mph.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 25. Calm wind.
Friday
Mostly sunny, with a high near 37.
Friday Night
Mostly clear, with a low around 28.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 20.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 29.
Monday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 19.
Tuesday
A 30 percent chance of snow. Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Blue Point NY
 40.75°N 73.04°W (Elev. 30 ft)
Last Update:
1:23 am EST Feb 25, 2026
Forecast Valid:
5am EST Feb 25, 2026-6pm EST Mar 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation