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January 18th, 2026 :: 12:49 pm PST   

Local Weather Report for
Clayton
California, United States

 Clayton Weather Forecast Summary  
 
Today
Jan 18th
Monday
Jan 19th
Tuesday
Jan 20th
Wednesday
Jan 21st
Thursday
Jan 22nd
Cloudy Cloudy Mix of Cloud and Sun Cloudy Cloudy
66°F
65°F
46°F
66°F
47°F
65°F
46°F
64°F
48°F
 
 Clayton Detailed Weather Forecast  
 
Sunday, January 18th, 2026
Afternoon Temperature: 60°F
Cloudy.
Evening Temperature: 51°F
Cloudy.
Monday, January 19th, 2026
Overnight Temperature: 47°F
Cloudy.
Morning Temperature: 61°F
Sunny with cloudy periods.
Afternoon Temperature: 59°F
A mix of sun and cloud.
Evening Temperature: 50°F
A mix of cloudy and clear skies.
Tuesday, January 20th, 2026
Overnight Temperature: 48°F
A mix of cloudy and clear skies.
Morning Temperature: 61°F
Sunny.
Afternoon Temperature: 59°F
Sunny.
Evening Temperature: 50°F
Mostly clear.
Wednesday, January 21st, 2026
Overnight Temperature: 47°F
Cloudy.
Morning Temperature: 60°F
Cloudy.
Afternoon Temperature: 59°F
Cloudy.
Evening Temperature: 51°F
Cloudy.
Thursday, January 22nd, 2026
Overnight Temperature: 49°F
Cloudy.
Morning Temperature: 61°F
A mix of cloud and sun.
Afternoon Temperature: 58°F
Sunny.
Evening Temperature: 49°F
Clear.
Friday, January 23rd, 2026
Overnight Temperature: 46°F
Clear.
Morning Temperature: 60°F
Sunny.
Afternoon Temperature: 58°F
Sunny.
Evening Temperature: 50°F
Clear.
Saturday, January 24th, 2026
Overnight Temperature: 46°F
Clear.
Morning Temperature: 61°F
Sunny with cloudy periods.
Afternoon Temperature: 60°F
Sunny.
Evening Temperature: 51°F
A mix of cloudy and clear skies.
Sunday, January 25th, 2026
Overnight Temperature: 48°F
Cloudy.
Morning Temperature: 60°F
Cloudy.
Afternoon Temperature: 58°F
A mix of cloud and sun.
Evening Temperature: 50°F
Clear.
Monday, January 26th, 2026
Overnight Temperature: 47°F
Cloudy.
Morning Temperature: 60°F
Cloudy.
Afternoon Temperature: 58°F
Cloudy.
Evening Temperature: 51°F
Cloudy.





 

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This WeatherCity Weather Forecast for Clayton, California, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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