National Weather Service Forecast for: Brentwood CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 2:07 am PDT Sep 13, 2026
 
Today

Today: Sunny, with a high near 82. West northwest wind 9 to 11 mph, with gusts as high as 23 mph.
Sunny

 Tonight

Tonight: Patchy smoke between 2am and 4am. Mostly clear, with a low around 57. West wind 5 to 7 mph.
Mostly Clear
then Patchy
Smoke
 Monday

Monday: Sunny, with a high near 90. West northwest wind 6 to 8 mph, with gusts as high as 18 mph.
Sunny

 Monday
Night
Monday Night: Clear, with a low around 58. West wind 5 to 8 mph becoming calm in the evening.
Clear

 Tuesday

Tuesday: Sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Sunny

 Tuesday
Night
Tuesday Night: Clear, with a low around 59.
Clear

 Wednesday

Wednesday: Sunny, with a high near 88.
Sunny

 Wednesday
Night
Wednesday Night: Clear, with a low around 58.
Clear

 Thursday

Thursday: Sunny, with a high near 90.
Sunny
Hi 82 °F Lo 57 °F Hi 90 °F Lo 58 °F Hi 90 °F Lo 59 °F Hi 88 °F Lo 58 °F Hi 90 °F

 

Today
 
 Sunny, with a high near 82. West northwest wind 9 to 11 mph, with gusts as high as 23 mph.
Tonight
 
 Patchy smoke between 2am and 4am. Mostly clear, with a low around 57. West wind 5 to 7 mph.
Monday
 
 Sunny, with a high near 90. West northwest wind 6 to 8 mph, with gusts as high as 18 mph.
Monday Night
 
 Clear, with a low around 58. West wind 5 to 8 mph becoming calm in the evening.
Tuesday
 
 Sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
 
 Clear, with a low around 59.
Wednesday
 
 Sunny, with a high near 88.
Wednesday Night
 
 Clear, with a low around 58.
Thursday
 
 Sunny, with a high near 90.
Thursday Night
 
 Clear, with a low around 59.
Friday
 
 Sunny, with a high near 90.
Friday Night
 
 Mostly clear, with a low around 58.
Saturday
 
 Sunny, with a high near 87.

 

Forecast from NOAA-NWS for Brentwood CA.