National Weather Service Forecast for: 2 Miles NNW San Ramon CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:40 am PST Dec 18, 2025
 
Overnight

Overnight: Patchy dense fog.  Otherwise, cloudy, with a low around 44. Calm wind.
Patchy Dense
Fog
Thursday

Thursday: Patchy dense fog before 11am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 61. Calm wind.
Patchy Dense
Fog then
Mostly Sunny
Thursday
Night
Thursday Night: A 20 percent chance of rain after 10pm.  Mostly cloudy, with a low around 48. Calm wind.
Slight Chance
Rain
Friday

Friday: Rain, mainly after 10am.  High near 60. South southwest wind 5 to 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Rain

Friday
Night
Friday Night: Rain, mainly before 10pm.  Low around 52. South southwest wind 5 to 7 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Rain then
Chance Rain
Saturday

Saturday: Rain likely, mainly after 10am.  Cloudy, with a high near 58. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain Likely

Saturday
Night
Saturday Night: Rain.  Low around 53. Chance of precipitation is 90%.
Rain

Sunday

Sunday: Rain.  Cloudy, with a high near 59.
Rain

Sunday
Night
Sunday Night: Rain.  Cloudy, with a low around 52.
Rain

Lo 44 °F Hi 61 °F Lo 48 °F Hi 60 °F Lo 52 °F Hi 58 °F Lo 53 °F Hi 59 °F Lo 52 °F

Dense Fog Advisory
 

Overnight
 
Patchy dense fog. Otherwise, cloudy, with a low around 44. Calm wind.
Thursday
 
Patchy dense fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 61. Calm wind.
Thursday Night
 
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 48. Calm wind.
Friday
 
Rain, mainly after 10am. High near 60. South southwest wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
 
Rain, mainly before 10pm. Low around 52. South southwest wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
 
Rain likely, mainly after 10am. Cloudy, with a high near 58. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
 
Rain. Low around 53. Chance of precipitation is 90%.
Sunday
 
Rain. Cloudy, with a high near 59.
Sunday Night
 
Rain. Cloudy, with a low around 52.
Monday
 
Rain. Cloudy, with a high near 57.
Monday Night
 
Rain likely. Cloudy, with a low around 47.
Tuesday
 
Rain likely. Cloudy, with a high near 55.
Tuesday Night
 
Rain. Cloudy, with a low around 46.
Wednesday
 
Rain likely. Mostly cloudy, with a high near 55.

 

Forecast from NOAA-NWS for 2 Miles NNW San Ramon CA.