NWS Forecast for Brentwood NY

National Weather Service Forecast for: Brentwood NY
Issued by: National Weather Service New York, NY

Updated: 7:08 am EDT Jun 30, 2026

This Afternoon Mostly Sunny	Tonight Slight Chance T-storms	Wednesday Mostly Sunny then Slight Chance T-storms	Wednesday Night Slight Chance T-storms	Thursday Sunny	Thursday Night Mostly Clear	Friday Sunny then Chance Showers	Friday Night Chance Showers then Partly Cloudy	Independence Day Mostly Sunny then Chance Showers
Hi 86 °F	Lo 70 °F	Hi 88 °F	Lo 73 °F	Hi 97 °F	Lo 77 °F	Hi 99 °F	Lo 76 °F	Hi 93 °F

Extreme Heat Watch
Hazardous Weather Outlook

This Afternoon	Mostly sunny, with a high near 86. South wind 10 to 13 mph.
Tonight	A 20 percent chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 70. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Wednesday	A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Southwest wind 10 to 14 mph.
Wednesday Night	A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Thursday	Sunny, with a high near 97. Southwest wind 7 to 11 mph.
Thursday Night	Mostly clear, with a low around 77.
Friday	A 30 percent chance of showers after 2pm. Increasing clouds, with a high near 99.
Friday Night	A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 76.
Independence Day	A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 93.
Saturday Night	A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 73.
Sunday	A 30 percent chance of showers. Mostly sunny, with a high near 91.
Sunday Night	A 30 percent chance of showers. Mostly cloudy, with a low around 71.
Monday	A 30 percent chance of showers. Partly sunny, with a high near 86.

Forecast from NOAA-NWS for Brentwood NY.