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.

A Few Clouds

26°F

-3°C

Humidity 53%
Wind Speed NW 18 G 29 mph
Barometer 29.86 in (1011.3 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 24 Feb 8:56 am EST
Extended Forecast for

Farmingville NY

  • Today

    Today: Mostly sunny, with a high near 29. Wind chill values between 15 and 20. West wind 8 to 11 mph.

    High: 29 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely after 4am. Increasing clouds, with a temperature falling to near 19 by 9pm, then rising to around 30 during the remainder of the night. West wind around 6 mph becoming calm. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 19 °F⇑

    Partly Cloudy
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow, possibly mixing with rain after 10am, then gradually ending. High near 39. Wind chill values between 25 and 30. Southwest wind 10 to 14 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. West wind around 6 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain and snow after 1pm. Partly sunny, with a high near 37. West wind around 6 mph. Chance of precipitation is 50%.

    High: 37 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Snow Likely

  • Friday

    Friday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 29. Wind chill values between 15 and 20. West wind 8 to 11 mph.
Tonight
Snow likely after 4am. Increasing clouds, with a temperature falling to near 19 by 9pm, then rising to around 30 during the remainder of the night. West wind around 6 mph becoming calm. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
Snow, possibly mixing with rain after 10am, then gradually ending. High near 39. Wind chill values between 25 and 30. Southwest wind 10 to 14 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 29. West wind around 6 mph.
Thursday
A chance of rain and snow after 1pm. Partly sunny, with a high near 37. West wind around 6 mph. Chance of precipitation is 50%.
Thursday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Mostly sunny, with a high near 36.
Friday Night
Mostly clear, with a low around 26.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 16.
Monday
A 30 percent chance of snow. Mostly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Farmingville NY
 40.84°N 73.02°W (Elev. 194 ft)
Last Update:
5:37 am EST Feb 24, 2026
Forecast Valid:
9am EST Feb 24, 2026-6pm EST Mar 2, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation