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

22°F

-6°C

Humidity 48%
Wind Speed W 10 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 20 Jan 2:56 am EST
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: Mostly clear, with a low around 16. Wind chill values between 5 and 10. West wind around 11 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 24. Wind chill values between 5 and 10. West wind 10 to 15 mph, with gusts as high as 28 mph.

    High: 24 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 11. West wind 5 to 9 mph, with gusts as high as 22 mph.

    Low: 11 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 40. Wind chill values between 15 and 25. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 40 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a steady temperature around 35. Southwest wind 8 to 10 mph, with gusts as high as 24 mph.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 16. Wind chill values between 5 and 10. West wind around 11 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 24. Wind chill values between 5 and 10. West wind 10 to 15 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 11. West wind 5 to 9 mph, with gusts as high as 22 mph.
Wednesday
Increasing clouds, with a high near 40. Wind chill values between 15 and 25. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
Mostly cloudy, with a steady temperature around 35. Southwest wind 8 to 10 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 23.
Friday
Partly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 9.
Saturday
Partly sunny and cold, with a high near 19.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 9.
Sunday
Snow likely. Mostly cloudy, with a high near 22. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 10.
Monday
A 30 percent chance of snow. Mostly sunny, with a high near 24.
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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:
1:07 am EST Jan 20, 2026
Forecast Valid:
3am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
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Additional Resources

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Chance of Precipitation