National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Shirley, Brookhaven Airport (KHWV)

Lat: 40.82°NLon: 72.87°WElev: 82ft.

A Few Clouds

30°F

-1°C

Humidity 47%
Wind Speed NW 13 G 28 mph
Barometer 29.85 in (1010.8 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 24 Feb 1:56 pm EST
Extended Forecast for

Mastic NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 32. Wind chill values between 20 and 25. West wind around 15 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of snow after 4am. Increasing clouds, with a temperature falling to near 19 by 10pm, then rising to around 30 during the remainder of the night. West wind around 6 mph becoming calm.

    Low: 19 °F⇑

    Mostly Clear
    then Chance
    Snow

  • Wednesday

    Wednesday: Rain and snow, mainly before 1pm. High near 39. Wind chill values between 25 and 30. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 39 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Southwest wind around 6 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow, mainly after 4pm. Partly sunny, with a high near 37. West wind around 6 mph.

    High: 37 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 32. Wind chill values between 20 and 25. West wind around 15 mph.
Tonight
A 50 percent chance of snow after 4am. Increasing clouds, with a temperature falling to near 19 by 10pm, then rising to around 30 during the remainder of the night. West wind around 6 mph becoming calm.
Wednesday
Rain and snow, mainly before 1pm. High near 39. Wind chill values between 25 and 30. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Wednesday Night
Partly cloudy, with a low around 29. Southwest wind around 6 mph.
Thursday
A 30 percent chance of snow, mainly after 4pm. Partly sunny, with a high near 37. West wind around 6 mph.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 36.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Partly cloudy, with a low around 19.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.82°N 72.85°W (Elev. 49 ft)
Last Update:
1:21 pm EST Feb 24, 2026
Forecast Valid:
2pm EST Feb 24, 2026-6pm EST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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