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

Hazardous Weather Conditions

Current conditions at

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

A Few Clouds

32°F

0°C

Humidity 75%
Wind Speed SW 6 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 25 Dec 5:56 am EST
Extended Forecast for

Mastic Beach NY

  • Christmas Day

    Christmas Day: Cloudy, then gradually becoming mostly sunny, with a high near 45. Southwest wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 45 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 19. Wind chill values between 10 and 15. North wind 10 to 14 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after 1pm. Increasing clouds, with a high near 31. Wind chill values between 5 and 15. North wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 31 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Snow. Low around 23. Calm wind becoming east 5 to 8 mph in the evening. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 23 °F

    Snow

  • Saturday

    Saturday: A 50 percent chance of snow, mainly before 1pm. Mostly cloudy, with a high near 33. Northeast wind 8 to 11 mph.

    High: 33 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 40.

    High: 40 °F

    Partly Sunny
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 30. Chance of precipitation is 80%.

    Low: 30 °F

    Rain

  • Monday

    Monday: Rain, mainly before 1pm. High near 48. Chance of precipitation is 80%.

    High: 48 °F

    Rain

Detailed Forecast

Christmas Day
Cloudy, then gradually becoming mostly sunny, with a high near 45. Southwest wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Tonight
Partly cloudy, with a low around 19. Wind chill values between 10 and 15. North wind 10 to 14 mph, with gusts as high as 26 mph.
Friday
A 20 percent chance of snow after 1pm. Increasing clouds, with a high near 31. Wind chill values between 5 and 15. North wind 6 to 10 mph, with gusts as high as 21 mph.
Friday Night
Snow. Low around 23. Calm wind becoming east 5 to 8 mph in the evening. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Saturday
A 50 percent chance of snow, mainly before 1pm. Mostly cloudy, with a high near 33. Northeast wind 8 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 40.
Sunday Night
Rain. Low around 30. Chance of precipitation is 80%.
Monday
Rain, mainly before 1pm. High near 48. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 37.
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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:
1:36 am EST Dec 25, 2025
Forecast Valid:
6am EST Dec 25, 2025-6pm EST Dec 31, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation