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.

Partly Cloudy

75°F

24°C

Humidity 84%
Wind Speed SW 12 mph
Barometer 29.85 in (1010.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 9 Jul 5:56 pm EDT
Extended Forecast for

Mastic Beach NY

  • Tonight

    Tonight: A chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Southwest wind 5 to 11 mph. Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. West wind 6 to 9 mph.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 81. Calm wind becoming east 5 to 8 mph in the morning.

    High: 81 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. Light and variable wind.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Southwest wind 5 to 11 mph. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. West wind 6 to 9 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers, mainly before 2pm. Partly sunny, with a high near 81. Calm wind becoming east 5 to 8 mph in the morning.
Saturday Night
Partly cloudy, with a low around 68. Light and variable wind.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 67.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic Beach NY
 40.77°N 72.86°W (Elev. 23 ft)
Last Update:
3:03 pm EDT Jul 9, 2026
Forecast Valid:
6pm EDT Jul 9, 2026-6pm EDT Jul 16, 2026
 
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