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

43°F

6°C

Humidity 76%
Wind Speed E 17 G 25 mph
Barometer 30.25 in (1024.4 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 4 Apr 9:56 pm EDT
Extended Forecast for

Blue Point NY

  • Tonight

    Tonight: A slight chance of showers between 11pm and 2am, then areas of drizzle with a chance of showers after 2am. The drizzle could be heavy at times. Areas of dense fog after 2am. Otherwise, cloudy, with a low around 42. East wind 8 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    Low: 42 °F

    Chance
    Showers and
    Areas Dense
    Fog

  • Sunday

    Sunday: Areas of drizzle with a chance of showers before 11am, then showers, mainly after 11am. The drizzle could be heavy at times. Areas of dense fog before 11am. High near 57. Southwest wind 11 to 17 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers
    Likely and
    Areas Dense
    Fog then
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Showers
    Likely then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 52. West wind around 10 mph, with gusts as high as 20 mph.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. West wind around 6 mph.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers between 11pm and 2am, then areas of drizzle with a chance of showers after 2am. The drizzle could be heavy at times. Areas of dense fog after 2am. Otherwise, cloudy, with a low around 42. East wind 8 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Sunday
Areas of drizzle with a chance of showers before 11am, then showers, mainly after 11am. The drizzle could be heavy at times. Areas of dense fog before 11am. High near 57. Southwest wind 11 to 17 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Sunny, with a high near 52. West wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 39. West wind around 6 mph.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly clear, with a low around 30.
Wednesday
Sunny, with a high near 44.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 56.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 54.
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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:
2:50 pm EDT Apr 4, 2026
Forecast Valid:
10pm EDT Apr 4, 2026-6pm EDT Apr 11, 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