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

32°F

0°C

Humidity 38%
Wind Speed NW 18 G 30 mph
Barometer 29.95 in (1014.4 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 2 Feb 2:56 pm EST
Extended Forecast for

Mastic NY

  • Tonight

    Tonight: Mostly clear, with a low around 11. Northwest wind around 6 mph becoming calm in the evening.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. Wind chill values between 10 and 20. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of light snow between 1am and 4am. Mostly cloudy, with a low around 20. Calm wind. Chance of precipitation is 20%.

    Low: 20 °F

    Mostly Cloudy
    then Slight
    Chance Light
    Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34. Wind chill values between 20 and 30. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 13. Calm wind.

    Low: 13 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 8.

    Low: 8 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 11. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 34. Wind chill values between 10 and 20. Calm wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
A slight chance of light snow between 1am and 4am. Mostly cloudy, with a low around 20. Calm wind. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 34. Wind chill values between 20 and 30. Calm wind becoming northwest 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 13. Calm wind.
Thursday
Mostly sunny, with a high near 27.
Thursday Night
Partly cloudy, with a low around 12.
Friday
Partly sunny, with a high near 30.
Friday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 8.
Saturday
Mostly sunny and cold, with a high near 17. Blustery.
Saturday Night
Partly cloudy, with a low around 5. Blustery.
Sunday
Partly sunny and cold, with a high near 19.
Sunday Night
Partly cloudy, with a low around 7.
Monday
Mostly sunny, with a high near 23.
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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:
1:22 pm EST Feb 2, 2026
Forecast Valid:
3pm EST Feb 2, 2026-6pm EST Feb 9, 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