National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

32°F

0°C

Humidity 85%
Wind Speed W 6 mph
Barometer 29.85 in (1010.8 mb)
Dewpoint 28°F (-2°C)
Visibility 8.00 mi
Wind Chill26°F (-3°C)
Last update 26 Feb 6:56 am EST
Extended Forecast for

5 Miles SSE Blue Point NY

  • Today

    Today: A slight chance of rain and snow after 1pm. Partly sunny, with a high near 37. Wind chill values between 20 and 30. Northwest wind 6 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 20%.

    High: 37 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 25. Wind chill values between 20 and 25. North wind 6 to 8 mph.

    Low: 25 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 37. Wind chill values between 20 and 30. Northeast wind 5 to 7 mph becoming south in the afternoon.

    High: 37 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. South wind 7 to 9 mph.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 41. Southwest wind 8 to 10 mph.

    High: 41 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 31.

    Low: 31 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, then gradual clearing during the afternoon, with a high near 36. Breezy.

    High: 36 °F

    Mostly Cloudy
    then Gradual
    Clearing and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20. Blustery.

    Low: 20 °F

    Partly Cloudy
    and Blustery

  • Monday

    Monday: A 30 percent chance of snow. Mostly cloudy, with a high near 28.

    High: 28 °F

    Chance Snow

Detailed Forecast

Today
A slight chance of rain and snow after 1pm. Partly sunny, with a high near 37. Wind chill values between 20 and 30. Northwest wind 6 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 25. Wind chill values between 20 and 25. North wind 6 to 8 mph.
Friday
Sunny, with a high near 37. Wind chill values between 20 and 30. Northeast wind 5 to 7 mph becoming south in the afternoon.
Friday Night
Mostly clear, with a low around 33. South wind 7 to 9 mph.
Saturday
Sunny, with a high near 41. Southwest wind 8 to 10 mph.
Saturday Night
Increasing clouds, with a low around 31.
Sunday
Cloudy, then gradual clearing during the afternoon, with a high near 36. Breezy.
Sunday Night
Partly cloudy, with a low around 20. Blustery.
Monday
A 30 percent chance of snow. Mostly cloudy, with a high near 28.
Monday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 23.
Tuesday
A 30 percent chance of snow. Mostly cloudy, with a high near 37.
Tuesday Night
A 50 percent chance of rain. Cloudy, with a low around 31.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
Last Update:
6:03 am EST Feb 26, 2026
Forecast Valid:
7am EST Feb 26, 2026-6pm EST Mar 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation