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.

Mostly Cloudy

25°F

-4°C

Humidity 48%
Wind Speed W 10 G 22 mph
Barometer 29.50 in (998.9 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 16 Jan 12:56 am EST
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: Mostly clear, with a low around 20. Wind chill values between 5 and 15. West wind 10 to 14 mph, with gusts as high as 32 mph.

    Low: 20 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 36. Wind chill values between 5 and 15. West wind 10 to 16 mph, with gusts as high as 32 mph.

    High: 36 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a steady temperature around 31. Wind chill values between 25 and 30. Southwest wind around 6 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Saturday

    Saturday: Rain likely before 4pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a high near 42. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A slight chance of snow before 7pm, then a slight chance of snow after 1am. Mostly cloudy, with a low around 30. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow. Cloudy, with a high near 37.

    High: 37 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 20. Wind chill values between 5 and 15. West wind 10 to 14 mph, with gusts as high as 32 mph.
Friday
Sunny, with a high near 36. Wind chill values between 5 and 15. West wind 10 to 16 mph, with gusts as high as 32 mph.
Friday Night
A slight chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a steady temperature around 31. Wind chill values between 25 and 30. Southwest wind around 6 mph. Chance of precipitation is 20%.
Saturday
Rain likely before 4pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a high near 42. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
A slight chance of snow before 7pm, then a slight chance of snow after 1am. Mostly cloudy, with a low around 30. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
A 30 percent chance of snow. Cloudy, with a high near 37.
Sunday Night
Mostly cloudy, with a low around 20.
M.L.King Day
Sunny, with a high near 35.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Sunny, with a high near 23.
Tuesday Night
Mostly clear, with a low around 12.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Partly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.82°N 72.85°W (Elev. 49 ft)
Last Update:
1:17 am EST Jan 16, 2026
Forecast Valid:
1am EST Jan 16, 2026-6pm EST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation