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

38°F

3°C

Humidity 93%
Wind Speed E 9 mph
Barometer 29.63 in (1003.5 mb)
Dewpoint 36°F (2°C)
Visibility 1.25 mi
Wind Chill32°F (0°C)
Last update 20 Feb 2:56 pm EST
Extended Forecast for

Mastic NY

Winter Storm Watch February 22, 06:00am until February 23, 06:00pm
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: Rain. High near 40. East wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Rain

  • Tonight

    Tonight: Rain before 1am, then a slight chance of rain and snow between 1am and 3am, then a slight chance of snow after 3am. Low around 30. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain then
    Slight Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 44. Light and variable wind becoming northwest around 6 mph.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of freezing rain after 4am. Mostly cloudy, with a low around 29. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 29 °F

    Chance Wintry
    Mix

  • Sunday

    Sunday: A chance of freezing rain before 7am, then snow likely. Cloudy, with a high near 37. East wind 8 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of 1 to 3 inches possible.

    High: 37 °F

    Chance Wintry
    Mix then Snow
    Likely

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Areas of blowing snow. Low around 27. Blustery. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    Low: 27 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Monday

    Monday: Snow. Areas of blowing snow before 4pm. High near 34. Windy. Chance of precipitation is 80%.

    High: 34 °F

    Snow and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain. High near 40. East wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain before 1am, then a slight chance of rain and snow between 1am and 3am, then a slight chance of snow after 3am. Low around 30. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 44. Light and variable wind becoming northwest around 6 mph.
Saturday Night
A chance of rain before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of freezing rain after 4am. Mostly cloudy, with a low around 29. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 30%.
Sunday
A chance of freezing rain before 7am, then snow likely. Cloudy, with a high near 37. East wind 8 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Areas of blowing snow. Low around 27. Blustery. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Monday
Snow. Areas of blowing snow before 4pm. High near 34. Windy. Chance of precipitation is 80%.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 40.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 31.
Thursday
Rain and snow likely. Mostly cloudy, with a high near 42. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Friday
A chance of snow. Partly sunny, with a high near 39.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mastic NY
 40.82°N 72.85°W (Elev. 49 ft)
Last Update:
2:17 pm EST Feb 20, 2026
Forecast Valid:
3pm EST Feb 20, 2026-6pm EST Feb 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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