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.

Mostly Cloudy

34°F

1°C

Humidity 48%
Wind Speed N 15 G 24 mph
Barometer 30.35 in (1027.9 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 28 Mar 8:56 am EDT
Extended Forecast for

Blue Point NY

  • Today

    Today: Mostly sunny, with a high near 42. Northwest wind around 14 mph, with gusts as high as 26 mph.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 24 mph.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 45. Light southwest wind becoming south 11 to 16 mph in the morning.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. Southwest wind 11 to 16 mph, with gusts as high as 28 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 55. Southwest wind 10 to 14 mph.

    High: 55 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 30 percent chance of rain after 2am. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain before 2pm. Partly sunny, with a high near 57.

    High: 57 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of rain after 2pm. Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny
    then Chance
    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 42. Northwest wind around 14 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 27. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 24 mph.
Sunday
Mostly sunny, with a high near 45. Light southwest wind becoming south 11 to 16 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 40. Southwest wind 11 to 16 mph, with gusts as high as 28 mph.
Monday
Mostly cloudy, with a high near 55. Southwest wind 10 to 14 mph.
Monday Night
A 30 percent chance of rain after 2am. Mostly cloudy, with a low around 44.
Tuesday
A 30 percent chance of rain before 2pm. Partly sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
A 50 percent chance of rain after 2pm. Mostly sunny, with a high near 60.
Wednesday Night
Rain likely, mainly between 8pm and 2am. Cloudy, with a low around 40. Chance of precipitation is 70%.
Thursday
A 40 percent chance of rain. Cloudy, with a high near 48.
Thursday Night
A chance of rain and snow. Cloudy, with a low around 36. Chance of precipitation is 50%.
Friday
Rain and snow likely. Cloudy, with a high near 44. Chance of precipitation is 60%.
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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:
4:58 am EDT Mar 28, 2026
Forecast Valid:
10am EDT Mar 28, 2026-6pm EDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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