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.

Fog/Mist

35°F

2°C

Humidity 96%
Wind Speed Calm
Barometer 30.23 in (1023.8 mb)
Dewpoint 34°F (1°C)
Visibility 4.00 mi
Last update 4 Mar 5:56 am EST
Extended Forecast for

Mastic NY

  • Today

    Today: Patchy fog before 9am. Otherwise, partly sunny, with a high near 46. Calm wind.

    High: 46 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A 20 percent chance of rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Patchy Fog
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: Rain, mainly after 7am. Patchy fog before 10am. High near 41. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 41 °F

    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain. Low around 34. Northeast wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 34 °F

    Rain

  • Friday

    Friday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 42. Northeast wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 42 °F

    Chance Rain

  • Friday Night

    Friday Night: Cloudy, with a low around 34.

    Low: 34 °F

    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 49.

    High: 49 °F

    Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly before 1am. Cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, partly sunny, with a high near 46. Calm wind.
Tonight
A 20 percent chance of rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 31. Calm wind.
Thursday
Rain, mainly after 7am. Patchy fog before 10am. High near 41. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 34. Northeast wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 42. Northeast wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
Cloudy, with a low around 34.
Saturday
Cloudy, with a high near 49.
Saturday Night
Showers likely, mainly before 1am. Cloudy, with a low around 40. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 53.
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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:
6:26 am EST Mar 4, 2026
Forecast Valid:
6am EST Mar 4, 2026-6pm EDT Mar 10, 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