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.

Overcast

33°F

1°C

Humidity 82%
Wind Speed Vrbl 5 mph
Barometer 30.13 in (1020.3 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 16 Feb 9:56 am EST
Extended Forecast for

Mastic NY

  • Washington's Birthday

    Washington's Birthday: Cloudy, then gradually becoming mostly sunny, with a high near 38. Northeast wind 6 to 8 mph.

    High: 38 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A 20 percent chance of snow after 4am. Increasing clouds, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 41. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 41 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 30. Calm wind.

    Low: 30 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Cloudy, with a high near 40. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Rain Likely

  • Thursday

    Thursday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday

    Friday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 70%.

    High: 40 °F

    Rain Likely

Detailed Forecast

Washington's Birthday
Cloudy, then gradually becoming mostly sunny, with a high near 38. Northeast wind 6 to 8 mph.
Tonight
A 20 percent chance of snow after 4am. Increasing clouds, with a low around 26. Calm wind.
Tuesday
Mostly cloudy, with a high near 41. Calm wind becoming southwest 5 to 7 mph in the morning.
Tuesday Night
Increasing clouds, with a low around 30. Calm wind.
Wednesday
Rain likely, mainly after 1pm. Cloudy, with a high near 40. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly cloudy, with a high near 39.
Thursday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 27.
Friday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 70%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 40.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 27.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.82°N 72.85°W (Elev. 49 ft)
Last Update:
10:04 am EST Feb 16, 2026
Forecast Valid:
10am EST Feb 16, 2026-6pm EST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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