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 54%
Wind Speed N 7 mph
Barometer 30.21 in (1022.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 Oct 12:56 pm EDT
Extended Forecast for

Mastic NY

  • This Afternoon

    This Afternoon: Sunny, with a high near 62. Northeast wind 5 to 7 mph.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Increasing clouds, with a low around 49. Southeast wind 3 to 7 mph.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely before 2pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 70. South wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms. Low around 43. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers

  • Saturday

    Saturday: Showers likely before 8am. Partly sunny, with a high near 53. North wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 62. Northeast wind 5 to 7 mph.
Tonight
A 30 percent chance of showers after 5am. Increasing clouds, with a low around 49. Southeast wind 3 to 7 mph.
Friday
Showers likely before 2pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 70. South wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms. Low around 43. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely before 8am. Partly sunny, with a high near 53. North wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Sunny, with a high near 62.
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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:
7:44 am EDT Oct 15, 2026
Forecast Valid:
1pm EDT Oct 15, 2026-6pm EDT Oct 21, 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