National Weather Service Forecast for: Brookhaven NY
Issued by: National Weather Service New York, NY
Updated: 11:53 pm EDT Jun 21, 2026
 
Today

Today: Showers likely, with thunderstorms also possible after 5pm. Increasing clouds, with a high near 77. Light and variable wind becoming southeast 5 to 10 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Partly Sunny
then Showers
Likely
 Tonight

Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 66. South wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
Likely then
Showers
 Tuesday

Tuesday: Showers, mainly before 2pm. High near 81. West wind 6 to 8 mph becoming northwest in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers

 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 65. Northwest wind 3 to 5 mph.
Partly Cloudy

 Wednesday

Wednesday: Sunny, with a high near 82. Northwest wind around 7 mph becoming west in the afternoon.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 65.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 82.
Sunny

 Thursday
Night
Thursday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 67.
Partly Cloudy
then Chance
Showers
 Friday

Friday: A 40 percent chance of showers. Partly sunny, with a high near 82.
Chance
Showers
Hi 77 °F Lo 66 °F Hi 81 °F Lo 65 °F Hi 82 °F Lo 65 °F Hi 82 °F Lo 67 °F Hi 82 °F

Hazardous Weather Outlook
Rip Current Statement
 

Today
 
 Showers likely, with thunderstorms also possible after 5pm. Increasing clouds, with a high near 77. Light and variable wind becoming southeast 5 to 10 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 66. South wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
 
 Showers, mainly before 2pm. High near 81. West wind 6 to 8 mph becoming northwest in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
 Partly cloudy, with a low around 65. Northwest wind 3 to 5 mph.
Wednesday
 
 Sunny, with a high near 82. Northwest wind around 7 mph becoming west in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 65.
Thursday
 
 Sunny, with a high near 82.
Thursday Night
 
 A 30 percent chance of showers after 2am. Partly cloudy, with a low around 67.
Friday
 
 A 40 percent chance of showers. Partly sunny, with a high near 82.
Friday Night
 
 A 30 percent chance of showers. Mostly cloudy, with a low around 67.
Saturday
 
 Partly sunny, with a high near 84.
Saturday Night
 
 Partly cloudy, with a low around 67.
Sunday
 
 Mostly sunny, with a high near 84.

 

Forecast from NOAA-NWS for Brookhaven NY.