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

60°F

16°C

Humidity 58%
Wind Speed S 13 G 21 mph
Barometer 29.81 in (1009.5 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 26 Mar 3:56 pm EDT
Extended Forecast for

Blue Point NY

  • Tonight

    Tonight: Showers, mainly after 8pm. Low around 48. Breezy, with a south wind 18 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Breezy.
    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers, mainly before 11am. Temperature falling to around 46 by 4pm. North wind 10 to 13 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F⇓

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. Northeast wind 6 to 8 mph.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 40. Wind chill values between 20 and 30. Northwest wind around 14 mph.

    High: 40 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Northwest wind 5 to 9 mph becoming light after midnight.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers, mainly after 8pm. Low around 48. Breezy, with a south wind 18 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, mainly before 11am. Temperature falling to around 46 by 4pm. North wind 10 to 13 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 30. Northeast wind 6 to 8 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 40. Wind chill values between 20 and 30. Northwest wind around 14 mph.
Saturday Night
Mostly clear, with a low around 29. Northwest wind 5 to 9 mph becoming light after midnight.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Partly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
A 30 percent chance of rain after 8am. Mostly cloudy, with a high near 52.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 43.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 56.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 45.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 55.
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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:
4:04 pm EDT Mar 26, 2026
Forecast Valid:
4pm EDT Mar 26, 2026-6pm EDT Apr 2, 2026
 
Forecast Discussion
 
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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