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.

Fog/Mist

38°F

3°C

Humidity 97%
Wind Speed N 5 mph
Barometer 29.68 in (1005.1 mb)
Dewpoint 37°F (3°C)
Visibility 0.75 mi
Wind Chill34°F (1°C)
Last update 7 Jan 12:56 am EST
Extended Forecast for

Mastic NY

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 4am. Patchy fog. Otherwise, cloudy, with a steady temperature around 40. Calm wind.

    Low: 40 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: Areas of fog before 7am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 45. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 25 mph.

    High: 45 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 30. Northwest wind 3 to 6 mph.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 44. Calm wind becoming northwest around 6 mph.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 50. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Chance Rain
    then Rain
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of rain. Cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Saturday

    Saturday: Rain. High near 48. Chance of precipitation is 80%.

    High: 48 °F

    Rain

  • Saturday Night

    Saturday Night: Rain, mainly before 1am. Low around 35. Chance of precipitation is 80%.

    Low: 35 °F

    Rain

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 4am. Patchy fog. Otherwise, cloudy, with a steady temperature around 40. Calm wind.
Wednesday
Areas of fog before 7am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 45. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 30. Northwest wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 44. Calm wind becoming northwest around 6 mph.
Thursday Night
Mostly cloudy, with a low around 32. Calm wind.
Friday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 50. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 50 percent chance of rain. Cloudy, with a low around 39.
Saturday
Rain. High near 48. Chance of precipitation is 80%.
Saturday Night
Rain, mainly before 1am. Low around 35. Chance of precipitation is 80%.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 47.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.82°N 72.85°W (Elev. 49 ft)
Last Update:
1:40 pm EST Jan 6, 2026
Forecast Valid:
1am EST Jan 7, 2026-6pm EST Jan 13, 2026
 
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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