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

54°F

12°C

Humidity 45%
Wind Speed N 16 G 26 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 16 Oct 11:56 am EDT
Extended Forecast for

Mastic NY

  • This Afternoon

    This Afternoon: Sunny, with a high near 57. North wind around 18 mph, with gusts as high as 30 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 43. North wind 11 to 17 mph, with gusts as high as 30 mph.

    Low: 43 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 62. North wind 11 to 13 mph.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. North wind 6 to 8 mph.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63. North wind around 6 mph becoming west in the afternoon.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Showers likely after 8pm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Monday

    Monday: A 40 percent chance of showers. Partly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 57. North wind around 18 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 43. North wind 11 to 17 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 62. North wind 11 to 13 mph.
Friday Night
Mostly clear, with a low around 45. North wind 6 to 8 mph.
Saturday
Sunny, with a high near 63. North wind around 6 mph becoming west in the afternoon.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Showers likely after 8pm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 66.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 52.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.8°N 72.85°W (Elev. 39 ft)
Last Update:
12:09 pm EDT Oct 16, 2025
Forecast Valid:
12pm EDT Oct 16, 2025-6pm EDT Oct 22, 2025
 
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