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

63°F

17°C

Humidity 48%
Wind Speed S 10 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 9 Mar 4:56 pm EDT
Extended Forecast for

Mastic NY

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 38. Light southwest wind.

    Low: 38 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 63. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers. Mostly cloudy, with a high near 57. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 57 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 43. South wind around 9 mph, with gusts as high as 24 mph.

    Low: 43 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain likely, mainly before 2pm. Cloudy, with a temperature rising to near 50 by 11am, then falling to around 44 during the remainder of the day. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F⇓

    Rain Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 29.

    Low: 29 °F

    Chance Rain
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 38. Light southwest wind.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 63. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 38. Calm wind.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 57. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 43. South wind around 9 mph, with gusts as high as 24 mph.
Thursday
Rain likely, mainly before 2pm. Cloudy, with a temperature rising to near 50 by 11am, then falling to around 44 during the remainder of the day. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 30 percent chance of rain before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 29.
Friday
Mostly sunny, with a high near 44.
Friday Night
A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly cloudy, with a high near 49.
Sunday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Monday
Rain likely. Cloudy, with a high near 48. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.8°N 72.85°W (Elev. 39 ft)
Last Update:
2:19 pm EDT Mar 9, 2026
Forecast Valid:
5pm EDT Mar 9, 2026-6pm EDT Mar 16, 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