News Headlines
- Latest Briefing: Major Winter Storm Sunday into Monday
- Winter Storm Warning in Effect 3AM Sunday to 6PM Monday
- Cold Weather Advisory in Effect 10PM Friday Night Until 12PM Saturday
- Learn More About Winter Hazards and Preparedness
- Students: Interested in Volunteering for NWS New York, NY this Summer?
Hazardous Weather Conditions
Current conditions at
Shirley, Brookhaven Airport (KHWV)
Lat: 40.82°NLon: 72.87°WElev: 82ft.
Fair
13°F
-11°C
| Humidity | 36% |
| Wind Speed | NW 18 G 26 mph |
| Barometer | 30.45 in (1031.3 mb) |
| Dewpoint | -9°F (-23°C) |
| Visibility | 10.00 mi |
| Wind Chill | -4°F (-20°C) |
| Last update | 24 Jan 1:56 am EST |
Extended Forecast for
Mastic NY
Cold Weather Advisory January 24, 02:49am until January 24, 12:00pm
Winter Storm Warning January 25, 03:00am until January 26, 06:00pm
NOW until 12:00pm Sat
Cold Weather Advisory
Overnight
Low: 8 °F
Partly Cloudy
Saturday
High: 17 °F
Cold
Saturday Night
Low: 14 °F
Mostly Cloudy
then Chance
SnowSunday
High: 31 °F
Heavy Snow
Sunday Night
Low: 29 °F
Wintry Mix
Monday
High: 31 °F
Snow
Monday Night
Low: 11 °F
Partly Cloudy
Tuesday
High: 21 °F
Mostly Sunny
Detailed Forecast
Overnight
Partly cloudy, with a low around 8. Wind chill values between -5 and zero. Northwest wind 10 to 16 mph, with gusts as high as 28 mph.
Saturday
Mostly sunny and cold, with a high near 17. Wind chill values between -5 and 5. Northwest wind 8 to 10 mph, with gusts as high as 25 mph.
Saturday Night
A 30 percent chance of snow after 4am. Mostly cloudy, with a steady temperature around 14. Wind chill values between 5 and 10. North wind around 6 mph becoming calm in the evening.
Sunday
Snow, mainly after 7am. The snow could be heavy at times. High near 31. Wind chill values between 5 and 15. Northeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Sunday Night
Sleet, possibly mixed with snow and freezing rain before 1am, then freezing rain and sleet between 1am and 4am, then snow, possibly mixed with freezing rain and sleet after 4am. Steady temperature around 29. Northeast wind 10 to 14 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow and sleet accumulation of 1 to 3 inches possible.
Monday
Snow, mainly before 1pm. High near 31. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 21.
Tuesday Night
Partly cloudy, with a low around 10.
Wednesday
Mostly sunny, with a high near 24.
Wednesday Night
Mostly cloudy, with a low around 10.
Thursday
Partly sunny, with a high near 23.
Thursday Night
Partly cloudy, with a low around 8.
Friday
Mostly sunny, with a high near 24.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mastic NY
40.82°N 72.85°W (Elev. 49 ft)
40.82°N 72.85°W (Elev. 49 ft)
1:05 am EST Jan 24, 2026
2am EST Jan 24, 2026-6pm EST Jan 30, 2026
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Hourly Weather Forecast
