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.

Partly Cloudy

45°F

7°C

Humidity 54%
Wind Speed S 17 G 25 mph
Barometer 30.54 in (1034.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 29 Mar 12:56 pm EDT
Extended Forecast for

5 Miles SSE Blue Point NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 44. Southwest wind 15 to 18 mph.

    High: 44 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 42. Breezy, with a southwest wind 22 to 24 mph.

    Low: 42 °F

    Increasing
    Clouds and
    Breezy

  • Monday

    Monday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 49. Breezy, with a southwest wind around 23 mph.

    High: 49 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 16 to 22 mph. Chance of precipitation is 20%.

    Low: 46 °F

    Mostly Cloudy
    and Breezy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 2pm. Partly sunny, with a high near 53. Breezy, with a southwest wind 16 to 23 mph.

    High: 53 °F

    Slight Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48. Windy.

    Low: 48 °F

    Partly Cloudy
    and Windy

  • Wednesday

    Wednesday: A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 55. Windy.

    High: 55 °F

    Mostly Sunny
    and Windy
    then Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 43. Breezy. Chance of precipitation is 70%.

    Low: 43 °F

    Rain Likely
    and Breezy

  • Thursday

    Thursday: A 50 percent chance of rain. Mostly cloudy, with a high near 45. Breezy.

    High: 45 °F

    Chance Rain
    and Breezy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 44. Southwest wind 15 to 18 mph.
Tonight
Increasing clouds, with a low around 42. Breezy, with a southwest wind 22 to 24 mph.
Monday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 49. Breezy, with a southwest wind around 23 mph.
Monday Night
A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 16 to 22 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers before 2pm. Partly sunny, with a high near 53. Breezy, with a southwest wind 16 to 23 mph.
Tuesday Night
Partly cloudy, with a low around 48. Windy.
Wednesday
A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 55. Windy.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 43. Breezy. Chance of precipitation is 70%.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 45. Breezy.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 39. Breezy.
Friday
Rain likely. Cloudy, with a high near 46. Breezy. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of rain. Cloudy, with a low around 41. Breezy.
Saturday
A 40 percent chance of rain. Cloudy, with a high near 46. Breezy.
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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:
2:25 am EDT Mar 29, 2026
Forecast Valid:
1pm EDT Mar 29, 2026-6pm EDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation