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.

A Few Clouds

54°F

12°C

Humidity 87%
Wind Speed SW 12 G 31 mph
Barometer 29.78 in (1008.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 11 Mar 6:56 pm EDT
Extended Forecast for

Mastic NY

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 41. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers, mainly before 5pm. High near 52. Southwest wind 9 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 28. West wind 5 to 8 mph.

    Low: 28 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 44. Light and variable wind becoming south 9 to 14 mph in the morning.

    High: 44 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 36. South wind 9 to 11 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 29.

    Low: 29 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, with a high near 46.

    High: 46 °F

    Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Cloudy, with a low around 37. Chance of precipitation is 70%.

    Low: 37 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 41. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Thursday
Showers, mainly before 5pm. High near 52. Southwest wind 9 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 28. West wind 5 to 8 mph.
Friday
Increasing clouds, with a high near 44. Light and variable wind becoming south 9 to 14 mph in the morning.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 36. South wind 9 to 11 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 48.
Saturday Night
Increasing clouds, with a low around 29.
Sunday
Cloudy, with a high near 46.
Sunday Night
Showers likely, mainly after 2am. Cloudy, with a low around 37. Chance of precipitation is 70%.
Monday
Showers. High near 53. Chance of precipitation is 90%.
Monday Night
Showers likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Mostly sunny, with a high near 35.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.82°N 72.85°W (Elev. 49 ft)
Last Update:
3:16 pm EDT Mar 11, 2026
Forecast Valid:
7pm EDT Mar 11, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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