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

54°F

12°C

Humidity 93%
Wind Speed Calm
Barometer 30.29 in (1025.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 3 Oct 8:56 pm EDT
Extended Forecast for

Mastic Beach NY

  • Tonight

    Tonight: Mostly clear, with a low around 55. East wind around 10 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Showers likely, mainly after 5pm. Increasing clouds, with a high near 63. East wind 11 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Cloudy, with a low around 56. Northeast wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 68. West wind 6 to 16 mph.

    High: 68 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Clear, with a low around 50. Northwest wind 14 to 17 mph.

    Low: 50 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 55. East wind around 10 mph.
Sunday
Showers likely, mainly after 5pm. Increasing clouds, with a high near 63. East wind 11 to 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers likely, mainly before 8pm. Cloudy, with a low around 56. Northeast wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 68. West wind 6 to 16 mph.
Monday Night
Clear, with a low around 50. Northwest wind 14 to 17 mph.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Clear, with a low around 50.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic Beach NY
 40.77°N 72.83°W (Elev. 13 ft)
Last Update:
2:19 pm EDT Oct 3, 2026
Forecast Valid:
9pm EDT Oct 3, 2026-6pm EDT Oct 10, 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