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

35°F

2°C

Humidity 70%
Wind Speed S 3 mph
Barometer 30.16 in (1021.4 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 27 Feb 5:56 pm EST
Extended Forecast for

Mastic NY

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 45. Calm wind becoming southwest around 6 mph.

    High: 45 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow showers before 10am, then snow showers likely. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 39. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow
    Likely and
    Patchy Fog
    then Snow
    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of snow showers before 7pm. Mostly clear, with a low around 16. North wind around 7 mph.

    Low: 16 °F

    Chance Snow
    Showers then
    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of rain. Mostly cloudy, with a high near 41.

    High: 41 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely. Cloudy, with a low around 37. Chance of precipitation is 70%.

    Low: 37 °F

    Rain Likely

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 28. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 45. Calm wind becoming southwest around 6 mph.
Saturday Night
Partly cloudy, with a low around 27. Calm wind.
Sunday
A slight chance of rain and snow showers before 10am, then snow showers likely. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 39. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
A 30 percent chance of snow showers before 7pm. Mostly clear, with a low around 16. North wind around 7 mph.
Monday
Partly sunny, with a high near 28.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 41.
Tuesday Night
Rain likely. Cloudy, with a low around 37. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 45.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Thursday
A 40 percent chance of rain. Cloudy, with a high near 45.
Thursday Night
Rain likely. Cloudy, with a low around 34. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Cloudy, with a high near 42.
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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:
5:52 pm EST Feb 27, 2026
Forecast Valid:
6pm EST Feb 27, 2026-6pm EST Mar 6, 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