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.

Partly Cloudy

35°F

2°C

Humidity 64%
Wind Speed S 3 mph
Barometer 30.11 in (1019.6 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 17 Jan 2:56 am EST
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 26. Southwest wind around 6 mph.

    Low: 26 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain likely, mainly between 7am and 4pm. Mostly cloudy, with a high near 44. Southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 44 °F

    Slight Chance
    Rain then
    Rain Likely

  • Saturday Night

    Saturday Night: A chance of rain before 7pm, then a chance of rain after 4am. Mostly cloudy, with a low around 29. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 29 °F

    Chance Rain

  • Sunday

    Sunday: Snow likely, possibly mixed with rain, becoming all snow after 4pm. Cloudy, with a high near 37. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 37 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 21. West wind 3 to 6 mph.

    Low: 21 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 25.

    High: 25 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 14.

    Low: 14 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 26. Southwest wind around 6 mph.
Saturday
Rain likely, mainly between 7am and 4pm. Mostly cloudy, with a high near 44. Southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Saturday Night
A chance of rain before 7pm, then a chance of rain after 4am. Mostly cloudy, with a low around 29. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Snow likely, possibly mixed with rain, becoming all snow after 4pm. Cloudy, with a high near 37. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 30 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 21. West wind 3 to 6 mph.
M.L.King Day
Mostly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Sunny, with a high near 25.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 33.
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:
12:59 am EST Jan 17, 2026
Forecast Valid:
3am EST Jan 17, 2026-6pm EST Jan 23, 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