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.

Overcast

44°F

7°C

Humidity 85%
Wind Speed S 15 mph
Barometer 29.90 in (1012.3 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 22 Mar 8:56 am EDT
Extended Forecast for

Mastic NY

  • Today

    Today: A slight chance of rain before 2pm, then a chance of rain after 5pm. Mostly cloudy, with a high near 52. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 52 °F

    Chance Rain

  • Tonight

    Tonight: Rain, mainly between 8pm and 11pm, then showers after 11pm. Low around 37. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain

  • Monday

    Monday: A 50 percent chance of rain before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. North wind 9 to 13 mph.

    High: 44 °F

    Chance Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. Northwest wind 6 to 9 mph.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 43. North wind around 6 mph becoming west in the afternoon.

    High: 43 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 32.

    Low: 32 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after 8am. Mostly cloudy, with a high near 50.

    High: 50 °F

    Chance Rain

Detailed Forecast

Today
A slight chance of rain before 2pm, then a chance of rain after 5pm. Mostly cloudy, with a high near 52. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
Rain, mainly between 8pm and 11pm, then showers after 11pm. Low around 37. Light and variable wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 50 percent chance of rain before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. North wind 9 to 13 mph.
Monday Night
Mostly clear, with a low around 29. Northwest wind 6 to 9 mph.
Tuesday
Sunny, with a high near 43. North wind around 6 mph becoming west in the afternoon.
Tuesday Night
Increasing clouds, with a low around 32.
Wednesday
Mostly cloudy, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
A 30 percent chance of rain after 8am. Mostly cloudy, with a high near 50.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Friday
Rain likely. Partly sunny, with a high near 49. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Sunny, with a high near 40.
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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:
2:51 am EDT Mar 22, 2026
Forecast Valid:
9am EDT Mar 22, 2026-6pm EDT Mar 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