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

54°F

12°C

Humidity 77%
Wind Speed NW 9 mph
Barometer 29.76 in (1007.6 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 14 May 11:56 pm EDT
Extended Forecast for

Village of the Branch NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 51. Northwest wind 3 to 5 mph.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 68. Northwest wind 6 to 8 mph.

    High: 68 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 78. Light southwest wind increasing to 8 to 13 mph in the morning.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 51. Northwest wind 3 to 5 mph.
Friday
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 68. Northwest wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 53. Calm wind.
Saturday
Sunny, with a high near 78. Light southwest wind increasing to 8 to 13 mph in the morning.
Saturday Night
Partly cloudy, with a low around 60. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 63.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Village of the Branch NY
 40.84°N 73.2°W (Elev. 49 ft)
Last Update:
6:30 pm EDT May 14, 2026
Forecast Valid:
12am EDT May 15, 2026-6pm EDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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