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

41°F

5°C

Humidity 51%
Wind Speed W 13 G 21 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 4 Dec 2:56 pm EST
Extended Forecast for

Mastic Beach NY

  • Tonight

    Tonight: Partly cloudy, with a low around 17. North wind 6 to 16 mph, with gusts as high as 29 mph.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 37. Wind chill values between 10 and 20. Light and variable wind becoming east around 6 mph in the morning.

    High: 37 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A chance of snow before 10pm, then a chance of rain and snow between 10pm and 1am, then a chance of rain after 1am. Cloudy, with a steady temperature around 33. Calm wind. Chance of precipitation is 40%.

    Low: 33 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 43. Calm wind becoming west 5 to 9 mph in the morning.

    High: 43 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 29. West wind around 6 mph.

    Low: 29 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 17. North wind 6 to 16 mph, with gusts as high as 29 mph.
Friday
Increasing clouds, with a high near 37. Wind chill values between 10 and 20. Light and variable wind becoming east around 6 mph in the morning.
Friday Night
A chance of snow before 10pm, then a chance of rain and snow between 10pm and 1am, then a chance of rain after 1am. Cloudy, with a steady temperature around 33. Calm wind. Chance of precipitation is 40%.
Saturday
A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 43. Calm wind becoming west 5 to 9 mph in the morning.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 29. West wind around 6 mph.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Mostly sunny, with a high near 36.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Partly sunny, with a high near 41.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic Beach NY
 40.77°N 72.86°W (Elev. 23 ft)
Last Update:
2:14 pm EST Dec 4, 2025
Forecast Valid:
3pm EST Dec 4, 2025-6pm EST Dec 11, 2025
 
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