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

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

Fog/Mist

35°F

2°C

Humidity 96%
Wind Speed N 3 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 34°F (1°C)
Visibility 3.00 mi
Last update 18 Feb 6:56 pm EST
Extended Forecast for

Yaphank NY

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Areas of fog before 1am. Otherwise, cloudy, with a low around 30. Light northeast wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 30 °F

    Rain Likely
    and Areas Fog
    then Chance
    Rain and
    Areas Fog

  • Thursday

    Thursday: Mostly cloudy, with a high near 40. Northeast wind 3 to 7 mph.

    High: 40 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of rain and snow before 10pm, then a chance of rain. Mostly cloudy, with a steady temperature around 34. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 50%.

    Low: 34 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain

  • Friday

    Friday: Rain. High near 40. East wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 40 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 7pm. Mostly cloudy, with a low around 31. Northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Rain Likely

  • Saturday

    Saturday: A 30 percent chance of rain after 1pm. Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of rain before 1am, then a chance of snow. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A 40 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.

    High: 36 °F

    Cloudy then
    Chance Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Tonight
Rain likely, mainly before 10pm. Areas of fog before 1am. Otherwise, cloudy, with a low around 30. Light northeast wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly cloudy, with a high near 40. Northeast wind 3 to 7 mph.
Thursday Night
A slight chance of rain and snow before 10pm, then a chance of rain. Mostly cloudy, with a steady temperature around 34. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 50%.
Friday
Rain. High near 40. East wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain likely, mainly before 7pm. Mostly cloudy, with a low around 31. Northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 30 percent chance of rain after 1pm. Partly sunny, with a high near 41.
Saturday Night
A chance of rain before 1am, then a chance of snow. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Sunday
A 40 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.
Sunday Night
A 50 percent chance of snow. Cloudy, with a low around 26.
Monday
A 40 percent chance of snow before 1pm. Mostly cloudy, with a high near 36.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Sunny, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Partly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yaphank NY
 40.82°N 72.9°W (Elev. 36 ft)
Last Update:
12:48 pm EST Feb 18, 2026
Forecast Valid:
7pm EST Feb 18, 2026-6pm EST Feb 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation