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

37°F

3°C

Humidity 31%
Wind Speed NW 6 mph
Barometer 30.45 in (1031.2 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 28 Mar 7:56 pm EDT
Extended Forecast for

Mastic NY

  • Tonight

    Tonight: Mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 21 mph.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 46. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 38. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 55. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 45. Southwest wind 5 to 7 mph.

    Low: 45 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

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

    High: 62 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after 2pm. Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 8pm. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.

    Low: 37 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Sunday
Mostly sunny, with a high near 46. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Increasing clouds, with a low around 38. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.
Monday
Partly sunny, with a high near 55. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Monday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 45. Southwest wind 5 to 7 mph.
Tuesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
A 40 percent chance of rain after 2pm. Partly sunny, with a high near 61.
Wednesday Night
Rain likely, mainly after 8pm. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 45.
Thursday Night
Rain and snow likely. Cloudy, with a low around 34. Chance of precipitation is 60%.
Friday
Rain and snow likely. Cloudy, with a high near 46. Chance of precipitation is 60%.
Friday Night
Rain likely. Cloudy, with a low around 36. Chance of precipitation is 60%.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 48.
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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:
2:35 pm EDT Mar 28, 2026
Forecast Valid:
8pm EDT Mar 28, 2026-6pm EDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation