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.

Fog/Mist

55°F

13°C

Humidity 96%
Wind Speed Calm
Barometer 29.75 in (1007.4 mb)
Dewpoint 54°F (12°C)
Visibility 6.00 mi
Last update 14 May 6:56 am EDT
Extended Forecast for

Village of the Branch NY

  • Today

    Today: Showers and possibly a thunderstorm before 2pm, then showers likely. High near 65. Light and variable wind becoming north around 6 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 52. Northwest wind 3 to 5 mph.

    Low: 52 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers between 8am and 11am. Partly sunny, with a high near 66. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 66 °F

    Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77. Light southwest wind increasing to 6 to 11 mph in the morning.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 2pm, then showers likely. High near 65. Light and variable wind becoming north around 6 mph in the morning. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 52. Northwest wind 3 to 5 mph.
Friday
A chance of showers between 8am and 11am. Partly sunny, with a high near 66. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 54. Calm wind.
Saturday
Sunny, with a high near 77. Light southwest wind increasing to 6 to 11 mph in the morning.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Village of the Branch NY
 40.86°N 73.19°W (Elev. 98 ft)
Last Update:
6:45 am EDT May 14, 2026
Forecast Valid:
7am EDT May 14, 2026-6pm EDT May 20, 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