National Weather Service Forecast for: Brentwood NY
Issued by: National Weather Service New York, NY
Updated: 2:34 pm EDT Jul 28, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 70. South wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Showers
 Wednesday

Wednesday: Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. High near 78. Southeast wind 8 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Showers
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. West wind around 8 mph becoming north in the evening. Chance of precipitation is 50%.
Chance
Showers
 Thursday

Thursday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. North wind 8 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 65. North wind around 7 mph.
Mostly Cloudy
 Friday

Friday: Mostly sunny, with a high near 82.
Mostly Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 65.
Mostly Clear
 Saturday

Saturday: Mostly sunny, with a high near 83.
Mostly Sunny
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 67.
Mostly Cloudy
Lo 70 °F Hi 78 °F Lo 67 °F Hi 78 °F Lo 65 °F Hi 82 °F Lo 65 °F Hi 83 °F Lo 67 °F

Hazardous Weather Outlook
Flood Watch
Rip Current Statement
 

Tonight
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 70. South wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
 
 Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. High near 78. Southeast wind 8 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. West wind around 8 mph becoming north in the evening. Chance of precipitation is 50%.
Thursday
 
 Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. North wind 8 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 Mostly cloudy, with a low around 65. North wind around 7 mph.
Friday
 
 Mostly sunny, with a high near 82.
Friday Night
 
 Mostly clear, with a low around 65.
Saturday
 
 Mostly sunny, with a high near 83.
Saturday Night
 
 Mostly cloudy, with a low around 67.
Sunday
 
 Partly sunny, with a high near 81.
Sunday Night
 
 A 40 percent chance of showers. Mostly cloudy, with a low around 67.
Monday
 
 Partly sunny, with a high near 82.
Monday Night
 
 Mostly cloudy, with a low around 67.
Tuesday
 
 Mostly sunny, with a high near 83.

 

Forecast from NOAA-NWS for Brentwood NY.