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

74°F

23°C

Humidity 60%
Wind Speed SE 12 G 20 mph
Barometer 30.13 in (1020.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 2 Sep 1:56 pm EDT
Extended Forecast for

Mastic Beach NY

  • This Afternoon

    This Afternoon: Sunny, with a high near 73. East wind around 10 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 58. Southeast wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. Light south wind.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. Light south wind increasing to 8 to 13 mph in the morning.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 8am. Sunny, with a high near 78.

    High: 78 °F

    Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 73. East wind around 10 mph.
Tonight
Increasing clouds, with a low around 58. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 74. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 60. Light south wind.
Thursday
Sunny, with a high near 75. Light south wind increasing to 8 to 13 mph in the morning.
Thursday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 65.
Friday
A 30 percent chance of showers before 8am. Sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 67.
Saturday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 80.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Sunny, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic Beach NY
 40.77°N 72.86°W (Elev. 23 ft)
Last Update:
1:54 pm EDT Sep 2, 2025
Forecast Valid:
2pm EDT Sep 2, 2025-6pm EDT Sep 8, 2025
 
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