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.

Light Rain

36°F

2°C

Humidity 79%
Wind Speed E 8 mph
Barometer 30.46 in (1031.5 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 3 Mar 12:56 pm EST
Extended Forecast for

5 Miles SSE Blue Point NY

  • This Afternoon

    This Afternoon: Rain. High near 38. East wind 10 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 38 °F

    Rain

  • Tonight

    Tonight: Rain, mainly before 4am. Low around 37. East wind 7 to 14 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43. West wind 5 to 7 mph becoming calm in the afternoon.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 35. Light and variable wind.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly between 10am and 1pm. Cloudy, with a high near 42. East wind 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain. Low around 39. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain

  • Friday

    Friday: A 40 percent chance of rain before 1pm. Cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

  • Friday Night

    Friday Night: Cloudy, with a low around 38.

    Low: 38 °F

    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 48.

    High: 48 °F

    Cloudy

Detailed Forecast

This Afternoon
Rain. High near 38. East wind 10 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain, mainly before 4am. Low around 37. East wind 7 to 14 mph becoming west after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Mostly sunny, with a high near 43. West wind 5 to 7 mph becoming calm in the afternoon.
Wednesday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 35. Light and variable wind.
Thursday
Rain likely, mainly between 10am and 1pm. Cloudy, with a high near 42. East wind 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain. Low around 39. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 40 percent chance of rain before 1pm. Cloudy, with a high near 43.
Friday Night
Cloudy, with a low around 38.
Saturday
Cloudy, with a high near 48.
Saturday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 44. Breezy. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 50.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 50.
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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:
1:13 pm EST Mar 3, 2026
Forecast Valid:
1pm EST Mar 3, 2026-6pm EDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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