National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

Fair

37°F

3°C

Humidity 70%
Wind Speed NW 7 mph
Barometer 30.47 in (1031.8 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Apr 4:56 am EDT
Extended Forecast for

Mastic NY

Frost Advisory April 12, 05:39am until April 12, 09:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory April 12, 05:39am until April 12, 09:00am

    NOW until 9:00am Sun

    Frost Advisory

  • Today

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. South wind 5 to 7 mph.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 67. Southwest wind 10 to 15 mph, with gusts as high as 29 mph.

    High: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 51. Southwest wind 6 to 10 mph, with gusts as high as 24 mph.

    Low: 51 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers between 8pm and midnight. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 54. Light and variable wind becoming south 6 to 11 mph in the morning.
Tonight
Mostly cloudy, with a low around 43. South wind 5 to 7 mph.
Monday
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 67. Southwest wind 10 to 15 mph, with gusts as high as 29 mph.
Monday Night
Mostly cloudy, with a low around 51. Southwest wind 6 to 10 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 73. Light southwest wind increasing to 5 to 9 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
A chance of showers between 8pm and midnight. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 74.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 64.
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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:
4:15 am EDT Apr 12, 2026
Forecast Valid:
5am EDT Apr 12, 2026-6pm EDT Apr 18, 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