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.

Overcast

60°F

16°C

Humidity 78%
Wind Speed Vrbl 3 mph
Barometer 30.21 in (1022.8 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 21 May 3:56 pm EDT
Extended Forecast for

Mastic Beach NY

  • This Afternoon

    This Afternoon: A 50 percent chance of rain. Cloudy, with a high near 60. East wind around 7 mph.

    High: 60 °F

    Chance Rain

  • Tonight

    Tonight: A 30 percent chance of rain before 8pm. Cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 62. East wind 11 to 14 mph.

    High: 62 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. East wind around 8 mph.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain likely, mainly after 2pm. Cloudy, with a high near 58. East wind 11 to 16 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Chance Rain
    then Rain
    Likely

  • Saturday Night

    Saturday Night: Rain. Low around 50. Breezy. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Rain and
    Breezy

  • Sunday

    Sunday: Rain. High near 61. Breezy. Chance of precipitation is 100%.

    High: 61 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain likely before 8pm, then a chance of showers after 8pm. Cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Rain Likely

  • Memorial Day

    Memorial Day: A 30 percent chance of showers before 2pm. Cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of rain. Cloudy, with a high near 60. East wind around 7 mph.
Tonight
A 30 percent chance of rain before 8pm. Cloudy, with a low around 52. Light and variable wind.
Friday
Partly sunny, with a high near 62. East wind 11 to 14 mph.
Friday Night
Mostly cloudy, with a low around 50. East wind around 8 mph.
Saturday
Rain likely, mainly after 2pm. Cloudy, with a high near 58. East wind 11 to 16 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain. Low around 50. Breezy. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Rain. High near 61. Breezy. Chance of precipitation is 100%.
Sunday Night
Rain likely before 8pm, then a chance of showers after 8pm. Cloudy, with a low around 54. Chance of precipitation is 60%.
Memorial Day
A 30 percent chance of showers before 2pm. Cloudy, with a high near 64.
Monday Night
A 30 percent chance of showers after 8pm. Cloudy, with a low around 56.
Tuesday
Mostly cloudy, with a high near 68.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 72.
Wednesday Night
Mostly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 70.
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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:
2:25 pm EDT May 21, 2026
Forecast Valid:
4pm EDT May 21, 2026-6pm EDT May 28, 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