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

55°F

13°C

Humidity 80%
Wind Speed SW 14 G 26 mph
Barometer 29.94 in (1013.7 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 31 Mar 11:56 pm EDT
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 53. Southwest wind around 14 mph, with gusts as high as 26 mph.

    Low: 53 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 70. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before midnight, then showers likely. Low around 39. Calm wind becoming east 5 to 8 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of light rain, mainly before noon. Patchy fog before noon. Otherwise, cloudy, with a high near 45. East wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 45 °F

    Chance Light
    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: A 20 percent chance of light rain after 8pm. Areas of fog after midnight. Otherwise, cloudy, with a low around 38. East wind 5 to 7 mph.

    Low: 38 °F

    Slight Chance
    Light Rain
    and Areas Fog

  • Friday

    Friday: Areas of fog before noon. Otherwise, mostly cloudy, with a high near 57.

    High: 57 °F

    Areas Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 53. Southwest wind around 14 mph, with gusts as high as 26 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 70. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Wednesday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Low around 39. Calm wind becoming east 5 to 8 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of light rain, mainly before noon. Patchy fog before noon. Otherwise, cloudy, with a high near 45. East wind 10 to 14 mph, with gusts as high as 24 mph.
Thursday Night
A 20 percent chance of light rain after 8pm. Areas of fog after midnight. Otherwise, cloudy, with a low around 38. East wind 5 to 7 mph.
Friday
Areas of fog before noon. Otherwise, mostly cloudy, with a high near 57.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 46.
Sunday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Mostly sunny, with a high near 49.
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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:
9:03 pm EDT Mar 31, 2026
Forecast Valid:
12am EDT Apr 1, 2026-6pm EDT Apr 7, 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