National Weather Service Forecast for: Clayton CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 9:46 am PDT May 4, 2026
 
Today

Today: A slight chance of rain between 3pm and 5pm. Mostly cloudy, with a high near 67. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Partly Sunny
then Slight
Chance Rain
 Tonight

Tonight: Rain likely, mainly after midnight. Mostly cloudy, with a low around 51. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Chance Rain
then Rain
Likely
 Tuesday

Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 67. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Decreasing
Clouds
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 50. West southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Partly Cloudy

 Wednesday

Wednesday: Mostly sunny, with a high near 76. West wind 6 to 9 mph.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 50.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 78.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 50.
Mostly Clear

 Friday

Friday: Sunny, with a high near 80.
Sunny
Hi 67 °F Lo 51 °F Hi 67 °F Lo 50 °F Hi 76 °F Lo 50 °F Hi 78 °F Lo 50 °F Hi 80 °F

 

Today
 
 A slight chance of rain between 3pm and 5pm. Mostly cloudy, with a high near 67. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
 
 Rain likely, mainly after midnight. Mostly cloudy, with a low around 51. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
 
 Cloudy, then gradually becoming mostly sunny, with a high near 67. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
 
 Partly cloudy, with a low around 50. West southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
 
 Mostly sunny, with a high near 76. West wind 6 to 9 mph.
Wednesday Night
 
 Mostly clear, with a low around 50.
Thursday
 
 Sunny, with a high near 78.
Thursday Night
 
 Mostly clear, with a low around 50.
Friday
 
 Sunny, with a high near 80.
Friday Night
 
 Clear, with a low around 51.
Saturday
 
 Sunny, with a high near 88.
Saturday Night
 
 Clear, with a low around 54.
Sunday
 
 Sunny, with a high near 93.

 

Forecast from NOAA-NWS for Clayton CA.