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.

Fair

53°F

12°C

Humidity 64%
Wind Speed S 7 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 9 Mar 7:56 pm EDT
Extended Forecast for

Village of the Branch NY

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 39. Light southwest wind.

    Low: 39 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming south around 6 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, partly cloudy, with a low around 40. Light south wind.

    Low: 40 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers. Mostly cloudy, with a high near 60. Calm wind becoming south 5 to 9 mph in the morning.

    High: 60 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 48. South wind around 9 mph, with gusts as high as 21 mph.

    Low: 48 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain likely, mainly before 2pm. Mostly cloudy, with a temperature rising to near 52 by 8am, then falling to around 44 during the remainder of the day. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F⇓

    Rain Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 29.

    Low: 29 °F

    Chance Rain
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 39. Light southwest wind.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 40. Light south wind.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 60. Calm wind becoming south 5 to 9 mph in the morning.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 48. South wind around 9 mph, with gusts as high as 21 mph.
Thursday
Rain likely, mainly before 2pm. Mostly cloudy, with a temperature rising to near 52 by 8am, then falling to around 44 during the remainder of the day. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 30 percent chance of rain before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 29.
Friday
Mostly sunny, with a high near 44.
Friday Night
A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Mostly cloudy, with a high near 50.
Sunday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
Monday
Rain likely. Cloudy, with a high near 49. Chance of precipitation is 60%.
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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:
7:45 pm EDT Mar 9, 2026
Forecast Valid:
8pm EDT Mar 9, 2026-6pm EDT Mar 16, 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