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

64°F

18°C

Humidity 75%
Wind Speed N 14 G 25 mph
Barometer 30.18 in (1021.8 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 4 Apr 8:56 am EDT
Extended Forecast for

5 Miles SSE Blue Point NY

  • Today

    Today: Partly sunny, with a high near 52. North wind 7 to 15 mph becoming east in the afternoon.

    High: 52 °F

    Partly Sunny

  • Tonight

    Tonight: A 40 percent chance of rain after 11pm. Cloudy, with a low around 42. Breezy, with an east wind 15 to 23 mph.

    Low: 42 °F

    Chance Rain
    and Breezy

  • Sunday

    Sunday: Rain likely and possibly a thunderstorm, then rain after 2pm. High near 51. Windy, with a southwest wind 22 to 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 51 °F

    Windy. Rain
    Likely then
    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 41. Northwest wind around 16 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain Likely
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 48. West wind 14 to 16 mph.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 33. Breezy.

    Low: 33 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 52. North wind 7 to 15 mph becoming east in the afternoon.
Tonight
A 40 percent chance of rain after 11pm. Cloudy, with a low around 42. Breezy, with an east wind 15 to 23 mph.
Sunday
Rain likely and possibly a thunderstorm, then rain after 2pm. High near 51. Windy, with a southwest wind 22 to 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely, mainly before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 41. Northwest wind around 16 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Sunny, with a high near 48. West wind 14 to 16 mph.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Mostly clear, with a low around 33. Breezy.
Wednesday
Sunny, with a high near 41.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
Last Update:
2:33 am EDT Apr 4, 2026
Forecast Valid:
9am EDT Apr 4, 2026-6pm EDT Apr 10, 2026
 
Forecast Discussion
 
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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