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.

A Few Clouds

63°F

17°C

Humidity 52%
Wind Speed NE 8 mph
Barometer 30.20 in (1022.6 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 Oct 12:56 pm EDT
Extended Forecast for

Village of the Branch NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 61. Northeast wind 5 to 7 mph.

    High: 61 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 5am. Increasing clouds, with a low around 50. Southeast wind 3 to 6 mph.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely before 2pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 71. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms. Low around 44. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers

  • Saturday

    Saturday: Showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 53. North wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 61. Northeast wind 5 to 7 mph.
Tonight
A 30 percent chance of showers, mainly after 5am. Increasing clouds, with a low around 50. Southeast wind 3 to 6 mph.
Friday
Showers likely before 2pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 71. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms. Low around 44. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 53. North wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Village of the Branch NY
 40.86°N 73.19°W (Elev. 98 ft)
Last Update:
7:44 am EDT Oct 15, 2026
Forecast Valid:
1pm EDT Oct 15, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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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