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

29°F

-2°C

Humidity 49%
Wind Speed N 10 G 20 mph
Barometer 30.02 in (1016.8 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 5 Feb 12:56 pm EST
Extended Forecast for

Mastic NY

Extreme Cold Watch February 7, 06:00pm until February 8, 01:00pm
Click here for hazard details and duration
Extreme Cold Watch

  • This Afternoon

    This Afternoon: Sunny, with a high near 29. Wind chill values between 20 and 25. Northwest wind 3 to 7 mph.

    High: 29 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 14. Calm wind.

    Low: 14 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 29. Wind chill values between 15 and 25. North wind around 6 mph becoming calm in the afternoon.

    High: 29 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Snow, mainly after 1am. Steady temperature around 23. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Slight Chance
    Snow then
    Snow

  • Saturday

    Saturday: Snow, mainly before 1pm. Temperature falling to around 15 by 5pm. Blustery, with a northwest wind 5 to 10 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 22 °F⇓

    Snow and
    Blustery

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Windy.

    Low: 3 °F

    Decreasing
    Clouds and
    Windy

  • Sunday

    Sunday: Sunny and cold, with a high near 17.

    High: 17 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 24.

    High: 24 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 29. Wind chill values between 20 and 25. Northwest wind 3 to 7 mph.
Tonight
Partly cloudy, with a low around 14. Calm wind.
Friday
Mostly cloudy, with a high near 29. Wind chill values between 15 and 25. North wind around 6 mph becoming calm in the afternoon.
Friday Night
Snow, mainly after 1am. Steady temperature around 23. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Saturday
Snow, mainly before 1pm. Temperature falling to around 15 by 5pm. Blustery, with a northwest wind 5 to 10 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Windy.
Sunday
Sunny and cold, with a high near 17.
Sunday Night
Mostly clear, with a low around 7.
Monday
Sunny, with a high near 24.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
A 30 percent chance of rain. Mostly sunny, with a high near 35.
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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:
1:09 pm EST Feb 5, 2026
Forecast Valid:
1pm EST Feb 5, 2026-6pm EST Feb 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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