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.

Mostly Cloudy

50°F

10°C

Humidity 46%
Wind Speed W 17 G 29 mph
Barometer 29.89 in (1012.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 13 Nov 4:56 pm EST
Extended Forecast for

5 Miles SSE Blue Point NY

  • Tonight

    Tonight: Mostly clear, with a low around 42. Breezy, with a northwest wind 21 to 24 mph.

    Low: 42 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 48. Breezy, with a northwest wind 18 to 20 mph.

    High: 48 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Northwest wind 14 to 17 mph.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 55. Northwest wind 10 to 14 mph becoming west in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Rain. Temperature rising to around 57 by 4am. Breezy, with a southwest wind 14 to 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F⇑

    Rain and
    Breezy

  • Sunday

    Sunday: A 40 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 57 by 9am, then falling to around 51 during the remainder of the day. Windy.

    High: 57 °F⇓

    Chance Rain
    and Windy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Windy.

    Low: 42 °F

    Partly Cloudy
    and Windy

  • Monday

    Monday: Mostly sunny, with a high near 47. Windy.

    High: 47 °F

    Mostly Sunny
    and Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Windy.

    Low: 41 °F

    Mostly Clear
    and Windy

Detailed Forecast

Tonight
Mostly clear, with a low around 42. Breezy, with a northwest wind 21 to 24 mph.
Friday
Mostly sunny, with a high near 48. Breezy, with a northwest wind 18 to 20 mph.
Friday Night
Partly cloudy, with a low around 38. Northwest wind 14 to 17 mph.
Saturday
Mostly sunny, with a high near 55. Northwest wind 10 to 14 mph becoming west in the afternoon.
Saturday Night
Rain. Temperature rising to around 57 by 4am. Breezy, with a southwest wind 14 to 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A 40 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 57 by 9am, then falling to around 51 during the remainder of the day. Windy.
Sunday Night
Partly cloudy, with a low around 42. Windy.
Monday
Mostly sunny, with a high near 47. Windy.
Monday Night
Mostly clear, with a low around 41. Windy.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 51.
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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:
1:01 pm EST Nov 13, 2025
Forecast Valid:
5pm EST Nov 13, 2025-6pm EST Nov 20, 2025
 
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Additional Resources

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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