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

18°F

-8°C

Humidity 62%
Wind Speed W 3 mph
Barometer 30.17 in (1021.6 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 10 Feb 12:56 am EST
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 15. Calm wind.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow between 1pm and 4pm. Mostly cloudy, with a high near 37. Wind chill values between 15 and 25. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 37 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 10pm, then rain and sleet between 10pm and 4am. Low around 28. Light and variable wind. Chance of precipitation is 80%. Little or no snow and sleet accumulation expected.

    Low: 28 °F

    Wintry Mix

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. Wind chill values between 25 and 30. West wind 6 to 14 mph, with gusts as high as 26 mph.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. West wind around 9 mph, with gusts as high as 24 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 15. Calm wind.
Tuesday
A slight chance of snow between 1pm and 4pm. Mostly cloudy, with a high near 37. Wind chill values between 15 and 25. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A chance of rain and snow before 10pm, then rain and sleet between 10pm and 4am. Low around 28. Light and variable wind. Chance of precipitation is 80%. Little or no snow and sleet accumulation expected.
Wednesday
Mostly sunny, with a high near 38. Wind chill values between 25 and 30. West wind 6 to 14 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 23. West wind around 9 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 34.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Sunny, with a high near 37.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly cloudy, with a high near 38.
Sunday Night
Rain and snow likely. Cloudy, with a low around 29. Chance of precipitation is 60%.
Washington's Birthday
Rain likely. Cloudy, with a high near 40. Chance of precipitation is 60%.
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:
1:11 am EST Feb 10, 2026
Forecast Valid:
1am EST Feb 10, 2026-6pm EST Feb 16, 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