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

42°F

6°C

Humidity 71%
Wind Speed NW 10 mph
Barometer 29.86 in (1011.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 7 Jan 5:56 pm EST
Extended Forecast for

Mastic NY

  • Tonight

    Tonight: Mostly clear, with a low around 30. Northwest wind 5 to 8 mph.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 45. Northwest wind 3 to 7 mph.

    High: 45 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 49. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 49 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Rain likely. Cloudy, with a low around 41. South wind 5 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 51. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Rain Likely
    then Rain

  • Saturday Night

    Saturday Night: Rain. Low around 39. Chance of precipitation is 90%.

    Low: 39 °F

    Rain

  • Sunday

    Sunday: A 40 percent chance of rain before 1pm. Mostly cloudy, with a high near 49.

    High: 49 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 30. Northwest wind 5 to 8 mph.
Thursday
Sunny, with a high near 45. Northwest wind 3 to 7 mph.
Thursday Night
Partly cloudy, with a low around 31. Calm wind.
Friday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 49. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Rain likely. Cloudy, with a low around 41. South wind 5 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 51. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Low around 39. Chance of precipitation is 90%.
Sunday
A 40 percent chance of rain before 1pm. Mostly cloudy, with a high near 49.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.8°N 72.85°W (Elev. 39 ft)
Last Update:
12:54 pm EST Jan 7, 2026
Forecast Valid:
6pm EST Jan 7, 2026-6pm EST Jan 14, 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