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

47°F

8°C

Humidity 100%
Wind Speed Calm
Barometer 30.40 in (1029.6 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 10 Oct 7:56 am EDT
Extended Forecast for

Mastic Beach NY

  • Today

    Today: Partly sunny, with a high near 64. North wind 5 to 7 mph becoming east in the afternoon.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. Southeast wind 3 to 6 mph.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain likely, mainly after 2pm. Cloudy, with a high near 66. Southeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Slight Chance
    Rain then
    Rain Likely

  • Sunday Night

    Sunday Night: Rain, with thunderstorms also possible after 11pm. Low around 59. East wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 59 °F

    Rain

  • Columbus Day

    Columbus Day: Rain likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 68. North wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Rain Likely

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 64. North wind 5 to 7 mph becoming east in the afternoon.
Tonight
Mostly cloudy, with a low around 53. Southeast wind 3 to 6 mph.
Sunday
Rain likely, mainly after 2pm. Cloudy, with a high near 66. Southeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain, with thunderstorms also possible after 11pm. Low around 59. East wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Columbus Day
Rain likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 68. North wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
A chance of thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 50.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic Beach NY
 40.77°N 72.86°W (Elev. 23 ft)
Last Update:
2:11 am EDT Oct 10, 2026
Forecast Valid:
8am EDT Oct 10, 2026-6pm EDT Oct 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