National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy and Breezy

72°F

22°C

Humidity 64%
Wind Speed NE 22 G 35 mph
Barometer 29.93 in (1013.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 21 Aug 12:56 pm EDT
Extended Forecast for

Village of the Branch NY

Coastal Flood Advisory August 21, 08:00pm until August 22, 01:00am
Click here for hazard details and duration
Coastal Flood Advisory

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 73. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.

    High: 73 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 59. Northeast wind 15 to 17 mph, with gusts as high as 29 mph.

    Low: 59 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 83. North wind 8 to 13 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. Southwest wind 3 to 5 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84. Light west wind becoming southwest 5 to 9 mph in the morning.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 2pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 73. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 59. Northeast wind 15 to 17 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 83. North wind 8 to 13 mph.
Friday Night
Mostly clear, with a low around 64. Southwest wind 3 to 5 mph.
Saturday
Sunny, with a high near 84. Light west wind becoming southwest 5 to 9 mph in the morning.
Saturday Night
Mostly clear, with a low around 67.
Sunday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 81.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Monday
Showers likely, mainly before 2pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 64.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
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:
1:51 am EDT Aug 21, 2025
Forecast Valid:
1pm EDT Aug 21, 2025-6pm EDT Aug 27, 2025
 
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