Current conditions at

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

Fog/Mist

31°F

-1°C

Humidity 96%
Wind Speed N 6 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 30°F (-1°C)
Visibility 1.75 mi
Wind Chill25°F (-4°C)
Last update 18 Jan 5:56 am EST
Extended Forecast for

Mastic NY

Winter Weather Advisory until January 19, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 19, 04:00am

    NOW until 4:00am Mon

    Winter Weather Advisory

  • Today

    High: 37 °F

    Rain/Snow and
    Areas
    Freezing Fog

  • Tonight

    Tonight: Snow, mainly before 10pm.  Low around 21. Light and variable wind becoming west around 6 mph after midnight.  Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 21 °F

    Snow then
    Chance Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 32. Wind chill values between 15 and 20. West wind 6 to 16 mph, with gusts as high as 28 mph.

    High: 32 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15. Wind chill values between 5 and 10. West wind around 11 mph, with gusts as high as 26 mph.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 25. West wind 9 to 17 mph, with gusts as high as 29 mph.

    High: 25 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Today
A chance of snow before 7am, then snow, possibly mixed with rain between 7am and 4pm, then snow after 4pm. Areas of freezing fog before 7am. High near 37. Calm wind becoming northeast 5 to 7 mph in the afternoon. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 10pm. Low around 21. Light and variable wind becoming west around 6 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
M.L.King Day
Mostly sunny, with a high near 32. Wind chill values between 15 and 20. West wind 6 to 16 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 15. Wind chill values between 5 and 10. West wind around 11 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 25. West wind 9 to 17 mph, with gusts as high as 29 mph.
Tuesday Night
Mostly clear, with a low around 12.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 35.
Friday Night
Mostly cloudy, with a low around 25.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.82°N 72.85°W (Elev. 49 ft)
4:59 am EST Jan 18, 2026
6am EST Jan 18, 2026-6pm EST Jan 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database