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.

Fair

39°F

4°C

Humidity 86%
Wind Speed W 8 G 18 mph
Barometer 29.38 in (995.0 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 11 Dec 1:56 am EST
Extended Forecast for

Mastic Beach NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. West wind around 16 mph, with gusts as high as 30 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a steady temperature around 33. Wind chill values between 20 and 25. Breezy, with a west wind 17 to 20 mph, with gusts as high as 37 mph.

    High: 33 °F

    Sunny then
    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 16 to 22 mph, with gusts as high as 39 mph.

    Low: 24 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 35. Wind chill values between 10 and 20. West wind 13 to 15 mph, with gusts as high as 26 mph.

    High: 35 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. West wind 3 to 8 mph.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of snow after 1am. Cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 70%.

    High: 34 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 34. West wind around 16 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a steady temperature around 33. Wind chill values between 20 and 25. Breezy, with a west wind 17 to 20 mph, with gusts as high as 37 mph.
Thursday Night
Partly cloudy, with a low around 24. Wind chill values between 10 and 20. Breezy, with a west wind 16 to 22 mph, with gusts as high as 39 mph.
Friday
Sunny, with a high near 35. Wind chill values between 10 and 20. West wind 13 to 15 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 25. West wind 3 to 8 mph.
Saturday
Partly sunny, with a high near 41.
Saturday Night
A 50 percent chance of snow after 1am. Cloudy, with a low around 26.
Sunday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 70%.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Partly sunny, with a high near 44.
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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:
1:14 am EST Dec 11, 2025
Forecast Valid:
2am EST Dec 11, 2025-6pm EST Dec 17, 2025
 
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Additional Resources

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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