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

57°F

14°C

Humidity 90%
Wind Speed Vrbl 3 mph
Barometer 29.98 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 Apr 7:56 pm EDT
Extended Forecast for

Mastic NY

  • Tonight

    Tonight: Partly cloudy, with a low around 47. East wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 59. Northeast wind 5 to 9 mph.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 2am. Cloudy, with a low around 45. Southeast wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 55. Southeast wind 5 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 2am. Cloudy during the early evening, then gradual clearing, with a low around 37. Northwest wind 5 to 9 mph.

    Low: 37 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. East wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 59. Northeast wind 5 to 9 mph.
Saturday Night
A 20 percent chance of showers after 2am. Cloudy, with a low around 45. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Showers, mainly after 8am. High near 55. Southeast wind 5 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 20 percent chance of showers before 2am. Cloudy during the early evening, then gradual clearing, with a low around 37. Northwest wind 5 to 9 mph.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 61.
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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:
2:24 pm EDT Apr 17, 2026
Forecast Valid:
8pm EDT Apr 17, 2026-6pm EDT Apr 24, 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