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.

Fog/Mist

64°F

18°C

Humidity 96%
Wind Speed Vrbl 6 G 17 mph
Barometer 29.74 in (1006.9 mb)
Dewpoint 63°F (17°C)
Visibility 4.00 mi
Last update 27 Sep 7:56 pm EDT
Extended Forecast for

Mastic NYSimilar City Names

Coastal Flood Advisory September 27, 08:50pm until September 28, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory September 27, 08:50pm until September 28, 02:00pm

    NOW until 2:00pm Mon

    Coastal Flood Advisory

  • Tonight

    Low: 63 °F

    Rain

  • Monday

    Monday: Rain, mainly before 5pm. High near 65. Northeast wind around 11 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain before 8pm. Mostly cloudy, with a low around 56. Northwest wind 5 to 8 mph.

    Low: 56 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68. Northwest wind 5 to 7 mph.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

Tonight
Rain and possibly a thunderstorm. Steady temperature around 63. Northeast wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday
Rain, mainly before 5pm. High near 65. Northeast wind around 11 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A 30 percent chance of rain before 8pm. Mostly cloudy, with a low around 56. Northwest wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 68. Northwest wind 5 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 58. Calm wind.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 73.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
Partly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic NYSimilar City Names
 40.8°N 72.85°W (Elev. 39 ft)
Last Update:
8:45 pm EDT Sep 27, 2026
Forecast Valid:
8pm EDT Sep 27, 2026-6pm EDT Oct 4, 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