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

51°F

11°C

Humidity 61%
Wind Speed N 18 G 28 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 27 Mar 9:56 am EDT
Extended Forecast for

Mastic NY

  • Today

    Today: A 30 percent chance of showers before 11am. Mostly cloudy, with a steady temperature around 49. North wind 11 to 14 mph.

    High: 49 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 29. North wind 5 to 7 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 40. Wind chill values between 20 and 30. North wind 8 to 13 mph.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 26 mph.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain. Partly sunny, with a high near 53.

    High: 53 °F

    Chance Rain

Detailed Forecast

Today
A 30 percent chance of showers before 11am. Mostly cloudy, with a steady temperature around 49. North wind 11 to 14 mph.
Tonight
Mostly cloudy, with a low around 29. North wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 40. Wind chill values between 20 and 30. North wind 8 to 13 mph.
Saturday Night
Partly cloudy, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 45. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 53.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 53.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 42.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 57.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 44.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.82°N 72.85°W (Elev. 49 ft)
Last Update:
7:52 am EDT Mar 27, 2026
Forecast Valid:
10am EDT Mar 27, 2026-6pm EDT Apr 2, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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