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.

16°F

-9°C

Humidity 96%
Wind Speed NW 5 mph
Barometer 30.19 in (1022.5 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 27 Dec 11:56 pm EST
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: Mostly clear, with a low around 19. Calm wind.

    Low: 19 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 43. Wind chill values between 20 and 30. Calm wind becoming west 5 to 7 mph in the morning.

    High: 43 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Rain. Temperature rising to around 43 by 3am. South wind 3 to 8 mph. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F⇑

    Rain

  • Monday

    Monday: Rain. High near 51. Southwest wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain

  • Monday Night

    Monday Night: A slight chance of rain showers before 10pm, then a slight chance of snow showers between 10pm and 1am. Mostly cloudy, with a low around 25. Breezy, with a west wind 16 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 34. Breezy.

    High: 34 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 19. Calm wind.
Sunday
Increasing clouds, with a high near 43. Wind chill values between 20 and 30. Calm wind becoming west 5 to 7 mph in the morning.
Sunday Night
Rain. Temperature rising to around 43 by 3am. South wind 3 to 8 mph. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain. High near 51. Southwest wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A slight chance of rain showers before 10pm, then a slight chance of snow showers between 10pm and 1am. Mostly cloudy, with a low around 25. Breezy, with a west wind 16 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 34. Breezy.
Tuesday Night
Mostly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 35.
Wednesday Night
Partly cloudy, with a low around 25.
New Year's Day
A 30 percent chance of snow. Mostly cloudy, with a high near 35.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 35.
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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:
12:59 pm EST Dec 27, 2025
Forecast Valid:
12am EST Dec 28, 2025-6pm EST Jan 3, 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