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.

Mostly Cloudy

37°F

3°C

Humidity 89%
Wind Speed SW 6 mph
Barometer 30.13 in (1020.3 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 20 Mar 4:56 am EDT
Extended Forecast for

Mastic NY

  • Today

    Today: A 30 percent chance of rain after 5pm. Mostly sunny, with a high near 49. Light southwest wind becoming south 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 49 °F

    Mostly Sunny
    then Chance
    Rain

  • Tonight

    Tonight: Rain, mainly before 2am. Low around 40. Southwest wind 7 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 52. Northwest wind 6 to 8 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 2pm. Mostly cloudy, with a high near 50. Light south wind increasing to 5 to 10 mph in the morning.

    High: 50 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 47. Chance of precipitation is 60%.

    High: 47 °F

    Rain Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of rain after 5pm. Mostly sunny, with a high near 49. Light southwest wind becoming south 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.
Tonight
Rain, mainly before 2am. Low around 40. Southwest wind 7 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 52. Northwest wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 36. Calm wind.
Sunday
A 20 percent chance of rain after 2pm. Mostly cloudy, with a high near 50. Light south wind increasing to 5 to 10 mph in the morning.
Sunday Night
Rain likely, mainly after 2am. Cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 47. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.82°N 72.85°W (Elev. 49 ft)
Last Update:
2:26 am EDT Mar 20, 2026
Forecast Valid:
5am EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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