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.

Overcast

38°F

3°C

Humidity 93%
Wind Speed NE 3 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 7 Apr 4:56 am EDT
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: A 30 percent chance of showers. Mostly cloudy, with a low around 38. Light southeast wind.

    Low: 38 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 8am, then a slight chance of showers after 2pm. Partly sunny, with a high near 52. Breezy, with a southwest wind 8 to 13 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 30%.

    High: 52 °F

    Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. Northwest wind 6 to 11 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 45. Wind chill values between 20 and 30 early. Light and variable wind becoming southeast 5 to 9 mph in the morning.

    High: 45 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28. Light south wind.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers. Mostly cloudy, with a low around 38. Light southeast wind.
Tuesday
A chance of showers before 8am, then a slight chance of showers after 2pm. Partly sunny, with a high near 52. Breezy, with a southwest wind 8 to 13 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 26. Northwest wind 6 to 11 mph.
Wednesday
Sunny, with a high near 45. Wind chill values between 20 and 30 early. Light and variable wind becoming southeast 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 28. Light south wind.
Thursday
Mostly sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 56.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 62.
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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:
4:36 am EDT Apr 7, 2026
Forecast Valid:
5am EDT Apr 7, 2026-6pm EDT Apr 13, 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