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.

A Few Clouds

30°F

-1°C

Humidity 38%
Wind Speed NW 15 G 25 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 2 Feb 1:56 pm EST
Extended Forecast for

Blue Point NY

  • This Afternoon

    This Afternoon: Sunny, with a high near 30. Wind chill values between 15 and 20. Northwest wind around 18 mph, with gusts as high as 29 mph.

    High: 30 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 13. Northwest wind 5 to 9 mph becoming light after midnight.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. Wind chill values between 15 and 25. West wind 3 to 8 mph.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of light snow between 1am and 4am. Mostly cloudy, with a low around 22. West wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 22 °F

    Mostly Cloudy
    then Slight
    Chance Light
    Snow

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 34. Northwest wind 5 to 9 mph.

    High: 34 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of snow after 1pm. Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

This Afternoon
Sunny, with a high near 30. Wind chill values between 15 and 20. Northwest wind around 18 mph, with gusts as high as 29 mph.
Tonight
Mostly clear, with a low around 13. Northwest wind 5 to 9 mph becoming light after midnight.
Tuesday
Mostly sunny, with a high near 34. Wind chill values between 15 and 25. West wind 3 to 8 mph.
Tuesday Night
A slight chance of light snow between 1am and 4am. Mostly cloudy, with a low around 22. West wind 3 to 6 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 34. Northwest wind 5 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 15.
Thursday
Mostly sunny, with a high near 28.
Thursday Night
Partly cloudy, with a low around 13.
Friday
A 30 percent chance of snow after 1pm. Partly sunny, with a high near 31.
Friday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 8.
Saturday
Mostly sunny and cold, with a high near 18. Blustery.
Saturday Night
Partly cloudy, with a low around 6. Blustery.
Sunday
Partly sunny and cold, with a high near 19.
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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:
1:22 pm EST Feb 2, 2026
Forecast Valid:
2pm EST Feb 2, 2026-6pm EST Feb 8, 2026
 
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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