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.

Fair

67°F

19°C

Humidity 87%
Wind Speed NW 3 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 14 Aug 6:56 am EDT
Extended Forecast for

Mastic NY

  • Today

    Today: Mostly sunny, with a high near 85. Light and variable wind becoming south 9 to 14 mph in the morning.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Southwest wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. North wind 3 to 7 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61. Light southwest wind.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. South wind 6 to 13 mph.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly after 8pm. Low around 70. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 70 °F

    Showers

  • Monday

    Monday: Showers, mainly before 8am. High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Showers then
    Chance
    Showers

  • Monday Night

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

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 85. Light and variable wind becoming south 9 to 14 mph in the morning.
Tonight
Partly cloudy, with a low around 64. Southwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 82. North wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 61. Light southwest wind.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. South wind 6 to 13 mph.
Sunday Night
Showers, mainly after 8pm. Low around 70. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Showers, mainly before 8am. High near 84. Chance of precipitation is 80%.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
A 40 percent chance of showers. Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.8°N 72.85°W (Elev. 39 ft)
Last Update:
3:11 am EDT Aug 14, 2026
Forecast Valid:
8am EDT Aug 14, 2026-6pm EDT Aug 20, 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