National Weather Service Forecast for: Atherton CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 am PDT Jun 30, 2026
 
Overnight

Overnight: Mostly clear, with a low around 56. Light southwest wind.
Mostly Clear
Tuesday

Tuesday: Sunny, with a high near 79. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 55. West southwest wind 5 to 8 mph becoming south after midnight.
Mostly Clear
Wednesday

Wednesday: Mostly sunny, with a high near 76. South wind 5 to 9 mph becoming west in the afternoon.
Mostly Sunny
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 55. South southwest wind 7 to 10 mph.
Partly Cloudy
Thursday

Thursday: Mostly sunny, with a high near 73.
Mostly Sunny
Thursday
Night
Thursday Night: Partly cloudy, with a low around 55.
Partly Cloudy
Friday

Friday: Mostly sunny, with a high near 77.
Mostly Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 56.
Mostly Clear
Lo 56 °F Hi 79 °F Lo 55 °F Hi 76 °F Lo 55 °F Hi 73 °F Lo 55 °F Hi 77 °F Lo 56 °F

 

Overnight
 
Mostly clear, with a low around 56. Light southwest wind.
Tuesday
 
Sunny, with a high near 79. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Tuesday Night
 
Mostly clear, with a low around 55. West southwest wind 5 to 8 mph becoming south after midnight.
Wednesday
 
Mostly sunny, with a high near 76. South wind 5 to 9 mph becoming west in the afternoon.
Wednesday Night
 
Partly cloudy, with a low around 55. South southwest wind 7 to 10 mph.
Thursday
 
Mostly sunny, with a high near 73.
Thursday Night
 
Partly cloudy, with a low around 55.
Friday
 
Mostly sunny, with a high near 77.
Friday Night
 
Mostly clear, with a low around 56.
Independence Day
 
Mostly sunny, with a high near 78.
Saturday Night
 
Mostly clear, with a low around 56.
Sunday
 
Partly sunny, with a high near 76.
Sunday Night
 
Partly cloudy, with a low around 56.
Monday
 
Partly sunny, with a high near 76.

 

Forecast from NOAA-NWS for Atherton CA.