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.

Fog/Mist

34°F

1°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 30.37 in (1028.4 mb)
Dewpoint 34°F (1°C)
Visibility 2.00 mi
Last update 7 Mar 12:56 am EST
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: Patchy fog. Otherwise, cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of drizzle before 1pm. Patchy fog. Otherwise, cloudy, with a high near 45. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 45 °F

    Areas Drizzle
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: A 50 percent chance of showers after 10pm. Areas of fog before 4am. Otherwise, cloudy, with a temperature rising to around 45 by 2am. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 41 °F⇑

    Chance
    Showers and
    Areas Fog

  • Sunday

    Sunday: A 40 percent chance of rain. Cloudy, with a high near 56. Southwest wind 8 to 10 mph.

    High: 56 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. West wind around 6 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, cloudy, with a low around 33. Calm wind.
Saturday
Areas of drizzle before 1pm. Patchy fog. Otherwise, cloudy, with a high near 45. Calm wind becoming south 5 to 8 mph in the afternoon.
Saturday Night
A 50 percent chance of showers after 10pm. Areas of fog before 4am. Otherwise, cloudy, with a temperature rising to around 45 by 2am. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
A 40 percent chance of rain. Cloudy, with a high near 56. Southwest wind 8 to 10 mph.
Sunday Night
Mostly clear, with a low around 35. West wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
A 40 percent chance of rain before 1pm. Cloudy, with a high near 53.
Wednesday Night
Rain likely. Cloudy, with a low around 41. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain. Cloudy, with a high near 50.
Thursday Night
Partly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 42.
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:
1:06 am EST Mar 7, 2026
Forecast Valid:
1am EST Mar 7, 2026-6pm EDT Mar 13, 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