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.

Partly Cloudy

35°F

2°C

Humidity 72%
Wind Speed W 9 mph
Barometer 29.84 in (1010.5 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 10 Dec 4:56 am EST
Extended Forecast for

Mastic Beach NY

  • Today

    Today: A 50 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 50. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 34 mph.

    High: 50 °F

    Partly Sunny
    then Chance
    Rain and
    Breezy

  • Tonight

    Tonight: Rain, mainly between 7pm and 10pm. Low around 29. Southwest wind 13 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 29 °F

    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 39. Wind chill values between 20 and 25. Breezy, with a west wind 16 to 21 mph, with gusts as high as 33 mph.

    High: 39 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24. Wind chill values between 10 and 20. Breezy, with a west wind 18 to 21 mph, with gusts as high as 37 mph.

    Low: 24 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 36. West wind 14 to 17 mph, with gusts as high as 29 mph.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A 40 percent chance of snow before 1pm. Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

Detailed Forecast

Today
A 50 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 50. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 34 mph.
Tonight
Rain, mainly between 7pm and 10pm. Low around 29. Southwest wind 13 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 39. Wind chill values between 20 and 25. Breezy, with a west wind 16 to 21 mph, with gusts as high as 33 mph.
Thursday Night
Partly cloudy, with a low around 24. Wind chill values between 10 and 20. Breezy, with a west wind 18 to 21 mph, with gusts as high as 37 mph.
Friday
Mostly sunny, with a high near 36. West wind 14 to 17 mph, with gusts as high as 29 mph.
Friday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.
Saturday
Partly sunny, with a high near 41.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 26.
Sunday
A 40 percent chance of snow before 1pm. Mostly cloudy, with a high near 35.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Sunny, with a high near 32.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
Partly sunny, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic Beach NY
 40.77°N 72.86°W (Elev. 23 ft)
Last Update:
2:32 am EST Dec 10, 2025
Forecast Valid:
5am EST Dec 10, 2025-6pm EST Dec 16, 2025
 
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