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

48°F

9°C

Humidity 68%
Wind Speed S 9 mph
Barometer 30.29 in (1025.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 13 Apr 1:56 am EDT
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 45. South wind around 7 mph.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 66. Southwest wind 10 to 17 mph, with gusts as high as 32 mph.

    High: 66 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. West wind 5 to 10 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 52. Southwest wind 5 to 7 mph.

    Low: 52 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 45. South wind around 7 mph.
Monday
Mostly cloudy, with a high near 66. Southwest wind 10 to 17 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 51. West wind 5 to 10 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 71. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 52. Southwest wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 69.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
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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:
1:48 am EDT Apr 13, 2026
Forecast Valid:
2am EDT Apr 13, 2026-6pm EDT Apr 19, 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