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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds and Breezy

39°F

4°C

Humidity 67%
Wind Speed W 22 G 33 mph
Barometer 29.56 in (1000.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 17 Mar 4:56 am EDT
Extended Forecast for

5 Miles SSE Blue Point NY

Wind Advisory March 17, 05:21am until March 17, 08:00am
Click here for hazard details and duration
...
  •  
    Wind Advisory March 17, 05:21am until March 17, 08:00am

    NOW until 8:00am Tue

    Wind Advisory

  • Today

    High: 38 °F

    Mostly Sunny
    and Windy

  • Tonight

    Tonight: A chance of flurries before 11pm.  Partly cloudy, with a low around 27. Wind chill values between 15 and 25. Breezy, with a northwest wind 18 to 24 mph.

    Low: 27 °F

    Chance
    Flurries and
    Breezy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 35. Wind chill values between 15 and 25. Northwest wind 7 to 11 mph.

    High: 35 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. South wind 5 to 7 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40. South wind 6 to 10 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain after 2am.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 38. Wind chill values between 20 and 25. Windy, with a west wind 25 to 32 mph, with gusts as high as 47 mph.
Tonight
A chance of flurries before 11pm. Partly cloudy, with a low around 27. Wind chill values between 15 and 25. Breezy, with a northwest wind 18 to 24 mph.
Wednesday
Increasing clouds, with a high near 35. Wind chill values between 15 and 25. Northwest wind 7 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 29. South wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 40. South wind 6 to 10 mph.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 44.
Friday Night
A 30 percent chance of rain after 2am. Mostly cloudy, with a low around 39.
Saturday
A 30 percent chance of rain before 2pm. Partly sunny, with a high near 45. Breezy.
Saturday Night
A 30 percent chance of rain after 8pm. Mostly cloudy, with a low around 38. Breezy.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 46. Breezy.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34. Windy.
Monday
Partly sunny, with a high near 42. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
4:00 am EDT Mar 17, 2026
5am EDT Mar 17, 2026-6pm EDT Mar 23, 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