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

52°F

11°C

Humidity 89%
Wind Speed SW 10 mph
Barometer 29.19 in (988.3 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 16 Nov 1:56 am EST
Extended Forecast for

Blue Point NY

  • Overnight

    Overnight: Showers likely before 4am. Mostly cloudy, with a steady temperature around 53. West wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 54 by 8am, then falling to around 46 during the remainder of the day. Breezy, with a west wind 14 to 21 mph, with gusts as high as 36 mph.

    High: 54 °F⇓

    Decreasing
    Clouds and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. Wind chill values between 25 and 30. Breezy, with a west wind 17 to 21 mph, with gusts as high as 37 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 45. Wind chill values between 25 and 35 early. West wind around 18 mph, with gusts as high as 32 mph.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 34. West wind 13 to 16 mph, with gusts as high as 28 mph.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers likely before 4am. Mostly cloudy, with a steady temperature around 53. West wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 54 by 8am, then falling to around 46 during the remainder of the day. Breezy, with a west wind 14 to 21 mph, with gusts as high as 36 mph.
Sunday Night
Partly cloudy, with a low around 34. Wind chill values between 25 and 30. Breezy, with a west wind 17 to 21 mph, with gusts as high as 37 mph.
Monday
Mostly sunny, with a high near 45. Wind chill values between 25 and 35 early. West wind around 18 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 34. West wind 13 to 16 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
Mostly cloudy, with a high near 52.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 43.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 47.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 57.
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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:
1:02 am EST Nov 16, 2025
Forecast Valid:
2am EST Nov 16, 2025-6pm EST Nov 22, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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