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.

Overcast

30°F

-1°C

Humidity 61%
Wind Speed Vrbl 5 mph
Barometer 30.18 in (1021.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 5 Dec 1:56 pm EST
Extended Forecast for

Mastic NY

  • This Afternoon

    This Afternoon: Mostly cloudy, with a steady temperature around 32. East wind around 6 mph.

    High: 32 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of snow before 10pm, then a chance of freezing rain between 10pm and 4am, then a chance of drizzle or freezing rain after 4am. Cloudy, with a steady temperature around 31. Calm wind. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Wintry
    Mix

  • Saturday

    Saturday: A chance of drizzle before 1pm. Cloudy, with a high near 42. Calm wind becoming west 5 to 8 mph in the morning.

    High: 42 °F

    Chance
    Drizzle

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 27. West wind around 6 mph.

    Low: 27 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 41. Light and variable wind becoming north around 6 mph in the morning.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Monday Night

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

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a steady temperature around 32. East wind around 6 mph.
Tonight
A slight chance of snow before 10pm, then a chance of freezing rain between 10pm and 4am, then a chance of drizzle or freezing rain after 4am. Cloudy, with a steady temperature around 31. Calm wind. Chance of precipitation is 30%.
Saturday
A chance of drizzle before 1pm. Cloudy, with a high near 42. Calm wind becoming west 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 27. West wind around 6 mph.
Sunday
Partly sunny, with a high near 41. Light and variable wind becoming north around 6 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Mostly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 48.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 35.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 45.
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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:
1:11 pm EST Dec 5, 2025
Forecast Valid:
2pm EST Dec 5, 2025-6pm EST Dec 11, 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