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

26°F

-3°C

Humidity 92%
Wind Speed Calm
Barometer 29.97 in (1015.1 mb)
Dewpoint 24°F (-4°C)
Visibility 8.00 mi
Last update 6 Dec 11:56 pm EST
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: Mostly clear, with a low around 28. Light northwest wind.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 42. Calm wind becoming north around 6 mph in the afternoon.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. West wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 32. Wind chill values between 15 and 20. North wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 32 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16. North wind 5 to 8 mph becoming calm after midnight.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 42.

    High: 42 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 28. Light northwest wind.
Sunday
Partly sunny, with a high near 42. Calm wind becoming north around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 23. West wind 5 to 9 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 32. Wind chill values between 15 and 20. North wind 11 to 15 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 16. North wind 5 to 8 mph becoming calm after midnight.
Tuesday
Increasing clouds, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 49.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 33.
Thursday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 44.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 28.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 41.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 35.
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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:
4:40 pm EST Dec 6, 2025
Forecast Valid:
12am EST Dec 7, 2025-6pm EST Dec 13, 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