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.

Fair

45°F

7°C

Humidity 42%
Wind Speed W 12 G 24 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 22 Jan 9:56 am EST
Extended Forecast for

Mastic NY

  • Today

    Today: Mostly sunny, with a high near 44. West wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 44 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 25. West wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 36. Wind chill values between 20 and 25. West wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 9. Wind chill values between -5 and 5. Northwest wind 10 to 13 mph, with gusts as high as 26 mph.

    Low: 9 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 18. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 18 °F

    Cold

  • Saturday Night

    Saturday Night: A 50 percent chance of snow after 1am. Mostly cloudy, with a steady temperature around 13.

    Low: 13 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow. High near 26. Chance of precipitation is 90%.

    High: 26 °F

    Snow

  • Sunday Night

    Sunday Night: Snow. Low around 18. Chance of precipitation is 80%.

    Low: 18 °F

    Snow

  • Monday

    Monday: A 40 percent chance of snow. Mostly cloudy, with a high near 28.

    High: 28 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 44. West wind 10 to 14 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 25. West wind 6 to 8 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 36. Wind chill values between 20 and 25. West wind 6 to 14 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 9. Wind chill values between -5 and 5. Northwest wind 10 to 13 mph, with gusts as high as 26 mph.
Saturday
Mostly sunny and cold, with a high near 18. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday Night
A 50 percent chance of snow after 1am. Mostly cloudy, with a steady temperature around 13.
Sunday
Snow. High near 26. Chance of precipitation is 90%.
Sunday Night
Snow. Low around 18. Chance of precipitation is 80%.
Monday
A 40 percent chance of snow. Mostly cloudy, with a high near 28.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
Partly cloudy, with a low around 14.
Wednesday
Partly sunny, with a high near 28.
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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:
1:01 am EST Jan 22, 2026
Forecast Valid:
10am EST Jan 22, 2026-6pm EST Jan 28, 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