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.

Overcast

34°F

1°C

Humidity 73%
Wind Speed Vrbl 3 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 19 Feb 6:56 am EST
Extended Forecast for

Mastic NY

  • Today

    Today: Mostly cloudy, with a high near 40. East wind 6 to 8 mph.

    High: 40 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 50 percent chance of rain after 4am. Cloudy, with a low around 32. East wind 5 to 7 mph.

    Low: 32 °F

    Cloudy then
    Chance Rain

  • Friday

    Friday: Rain, mainly after 7am. High near 41. East wind 8 to 14 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 41 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 30. Northeast wind 5 to 7 mph becoming northwest after midnight.

    Low: 30 °F

    Chance Rain

  • Saturday

    Saturday: A slight chance of rain and snow before 4pm, then a slight chance of rain. Mostly cloudy, with a high near 42. Light and variable wind becoming north 5 to 7 mph in the morning. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A chance of snow between 7pm and 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.

    Low: 26 °F

    Chance Snow

  • Sunday

    Sunday: A 40 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow

  • Monday

    Monday: A 40 percent chance of snow before 1pm. Cloudy, with a high near 34.

    High: 34 °F

    Chance Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 40. East wind 6 to 8 mph.
Tonight
A 50 percent chance of rain after 4am. Cloudy, with a low around 32. East wind 5 to 7 mph.
Friday
Rain, mainly after 7am. High near 41. East wind 8 to 14 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 50 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 30. Northeast wind 5 to 7 mph becoming northwest after midnight.
Saturday
A slight chance of rain and snow before 4pm, then a slight chance of rain. Mostly cloudy, with a high near 42. Light and variable wind becoming north 5 to 7 mph in the morning. Chance of precipitation is 20%.
Saturday Night
A chance of snow between 7pm and 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Sunday
A 40 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.
Sunday Night
A 50 percent chance of snow. Cloudy, with a low around 26.
Monday
A 40 percent chance of snow before 1pm. Cloudy, with a high near 34.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 39.
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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:
6:58 am EST Feb 19, 2026
Forecast Valid:
7am EST Feb 19, 2026-6pm EST Feb 25, 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