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

44°F

7°C

Humidity 89%
Wind Speed Calm
Barometer 30.09 in (1018.9 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 11 May 10:56 pm EDT
Extended Forecast for

Mastic Beach NY

  • Tonight

    Tonight: A chance of sprinkles. Partly cloudy, with a low around 46. Northwest wind 5 to 8 mph.

    Low: 46 °F

    Chance
    Sprinkles

  • Tuesday

    Tuesday: Sunny, with a high near 61. North wind 6 to 9 mph becoming west in the afternoon.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 50. Southwest wind around 9 mph.

    Low: 50 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 61. Breezy, with a south wind 11 to 21 mph, with gusts as high as 33 mph.

    High: 61 °F

    Cloudy then
    Slight Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 52. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 2pm. High near 62. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers after 8am. Partly sunny, with a high near 62.

    High: 62 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of sprinkles. Partly cloudy, with a low around 46. Northwest wind 5 to 8 mph.
Tuesday
Sunny, with a high near 61. North wind 6 to 9 mph becoming west in the afternoon.
Tuesday Night
Increasing clouds, with a low around 50. Southwest wind around 9 mph.
Wednesday
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 61. Breezy, with a south wind 11 to 21 mph, with gusts as high as 33 mph.
Wednesday Night
Showers and possibly a thunderstorm. Low around 52. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers, with thunderstorms also possible after 2pm. High near 62. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers after 8am. Partly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 69.
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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:
8:30 pm EDT May 11, 2026
Forecast Valid:
11pm EDT May 11, 2026-6pm EDT May 18, 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