National Weather Service Forecast for: Walnut Creek CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:26 pm PDT Jun 29, 2026
 
Overnight

Overnight: Clear, with a low around 56. South southwest wind around 7 mph.
Clear
 Tuesday

Tuesday: Sunny, with a high near 83. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 54. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 80. South southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 54. Southwest wind around 11 mph, with gusts as high as 25 mph.
Mostly Clear
 Thursday

Thursday: Mostly sunny, with a high near 77.
Mostly Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 54.
Mostly Clear
 Friday

Friday: Sunny, with a high near 82.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 55.
Mostly Clear
Lo 56 °F Hi 83 °F Lo 54 °F Hi 80 °F Lo 54 °F Hi 77 °F Lo 54 °F Hi 82 °F Lo 55 °F

 

Overnight
 
 Clear, with a low around 56. South southwest wind around 7 mph.
Tuesday
 
 Sunny, with a high near 83. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
 
 Mostly clear, with a low around 54. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday
 
 Sunny, with a high near 80. South southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Wednesday Night
 
 Mostly clear, with a low around 54. Southwest wind around 11 mph, with gusts as high as 25 mph.
Thursday
 
 Mostly sunny, with a high near 77.
Thursday Night
 
 Mostly clear, with a low around 54.
Friday
 
 Sunny, with a high near 82.
Friday Night
 
 Mostly clear, with a low around 55.
Independence Day
 
 Sunny, with a high near 83.
Saturday Night
 
 Mostly clear, with a low around 55.
Sunday
 
 Mostly sunny, with a high near 80.
Sunday Night
 
 Partly cloudy, with a low around 55.
Monday
 
 Mostly sunny, with a high near 79.

 

Forecast from NOAA-NWS for Walnut Creek CA.