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

48°F

9°C

Humidity 50%
Wind Speed N 13 mph
Barometer 30.38 in (1028.6 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 11 Apr 10:56 pm EDT
Extended Forecast for

Mastic NY

Frost Advisory April 12, 12:00am until April 12, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Patchy frost after 5am. Otherwise, clear, with a low around 37. North wind around 6 mph becoming calm after midnight.

    Low: 37 °F

    Patchy Frost

  • Sunday

    Sunday: Patchy frost before 7am. Otherwise, increasing clouds, with a high near 52. Calm wind becoming south 5 to 9 mph in the morning.

    High: 52 °F

    Patchy Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 44. South wind 7 to 9 mph.

    Low: 44 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 63. Breezy, with a south wind 13 to 20 mph.

    High: 63 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 53. Southwest wind 6 to 16 mph.

    Low: 53 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy frost after 5am. Otherwise, clear, with a low around 37. North wind around 6 mph becoming calm after midnight.
Sunday
Patchy frost before 7am. Otherwise, increasing clouds, with a high near 52. Calm wind becoming south 5 to 9 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 44. South wind 7 to 9 mph.
Monday
Partly sunny, with a high near 63. Breezy, with a south wind 13 to 20 mph.
Monday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 53. Southwest wind 6 to 16 mph.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
Partly sunny, with a high near 70.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 65.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 60.
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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:
6:36 pm EDT Apr 11, 2026
Forecast Valid:
11pm EDT Apr 11, 2026-6pm EDT Apr 18, 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