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

42°F

6°C

Humidity 53%
Wind Speed NW 14 G 29 mph
Barometer 29.76 in (1007.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 11 Jan 4:56 pm EST
Extended Forecast for

Mastic NY

  • This Afternoon

    This Afternoon: A 30 percent chance of showers. Partly sunny, with a steady temperature around 39. West wind around 11 mph, with gusts as high as 23 mph.

    High: 39 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers before 7pm. Mostly clear, with a low around 27. Wind chill values between 20 and 25. West wind 13 to 15 mph, with gusts as high as 33 mph.

    Low: 27 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 40. Wind chill values between 15 and 25. West wind 10 to 13 mph, with gusts as high as 26 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. West wind around 7 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 44. Southwest wind 5 to 9 mph.

    High: 44 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a steady temperature around 38.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 1am. Cloudy, with a low around 32.

    Low: 32 °F

    Cloudy then
    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

Detailed Forecast

This Afternoon
A 30 percent chance of showers. Partly sunny, with a steady temperature around 39. West wind around 11 mph, with gusts as high as 23 mph.
Tonight
A 30 percent chance of showers before 7pm. Mostly clear, with a low around 27. Wind chill values between 20 and 25. West wind 13 to 15 mph, with gusts as high as 33 mph.
Monday
Sunny, with a high near 40. Wind chill values between 15 and 25. West wind 10 to 13 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 29. West wind around 7 mph.
Tuesday
Sunny, with a high near 44. Southwest wind 5 to 9 mph.
Tuesday Night
Mostly cloudy, with a steady temperature around 38.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
A 30 percent chance of rain after 1am. Cloudy, with a low around 32.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 43.
Thursday Night
A chance of rain before 1am, then a chance of snow. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 39.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A chance of rain. Partly sunny, with a high near 37.
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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:
1:42 pm EST Jan 11, 2026
Forecast Valid:
5pm EST Jan 11, 2026-6pm EST Jan 18, 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