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

28°F

-2°C

Humidity 72%
Wind Speed N 5 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 12 Feb 3:56 am EST
Extended Forecast for

Mastic NY

  • Today

    Today: Mostly sunny, with a high near 35. Wind chill values between 15 and 25. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 35 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 18. Northwest wind 5 to 8 mph.

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 34. Wind chill values between 10 and 20. Light northwest wind increasing to 5 to 9 mph in the morning.

    High: 34 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow showers, mainly after 10pm. Increasing clouds, with a low around 23. Calm wind becoming west around 5 mph after midnight.

    Low: 23 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 39. West wind 6 to 10 mph.

    High: 39 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.

    Low: 27 °F

    Chance
    Rain/Snow

  • Washington's Birthday

    Washington's Birthday: A chance of rain and snow before 1pm. Mostly sunny, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Mostly sunny, with a high near 35. Wind chill values between 15 and 25. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.
Tonight
Partly cloudy, with a low around 18. Northwest wind 5 to 8 mph.
Friday
Sunny, with a high near 34. Wind chill values between 10 and 20. Light northwest wind increasing to 5 to 9 mph in the morning.
Friday Night
A 30 percent chance of snow showers, mainly after 10pm. Increasing clouds, with a low around 23. Calm wind becoming west around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 39. West wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 38.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Washington's Birthday
A chance of rain and snow before 1pm. Mostly sunny, with a high near 40. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
A 40 percent chance of rain. Cloudy, with a high near 42.
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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:
2:21 am EST Feb 12, 2026
Forecast Valid:
4am EST Feb 12, 2026-6pm EST Feb 18, 2026
 
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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