National Weather Service Forecast for: Ben Lomond CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:55 pm PST Dec 22, 2025
 
Overnight

Overnight: A 30 percent chance of rain. Widespread fog, mainly before 1am. Otherwise, cloudy, with a low around 49. Light southeast wind. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
and Fog

 Tuesday

Tuesday: Rain likely, mainly after 4pm. Cloudy, with a high near 61. South wind 13 to 21 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain Likely

 Tuesday
Night
Tuesday Night: Rain before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain likely and possibly a thunderstorm after 4am. Low around 48. Breezy, with a southeast wind 17 to 24 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Showers and
Breezy

 Wednesday

Wednesday: Rain, mainly before 1pm, then showers and possibly a thunderstorm after 1pm. Some of the storms could be severe. Areas of fog before 10am. High near 60. Light south southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Rain and
Areas Fog
then Severe
T-Storms
 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm before 7pm, then rain after 7pm. Some of the storms could be severe. Low around 48. South wind 13 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Severe
T-Storms
then Rain
 Christmas
Day
Christmas Day: Showers and possibly a thunderstorm. High near 58. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Showers

 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm before 1am, then rain after 1am. Low around 44. Chance of precipitation is 100%.
Showers

 Friday

Friday: Rain. Patchy fog before noon. Otherwise, cloudy, with a high near 58.
Rain and
Patchy Fog

 Friday
Night
Friday Night: Rain likely, mainly before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 41.
Rain Likely
and Patchy
Fog
Lo 49 °F Hi 61 °F Lo 48 °F Hi 60 °F Lo 48 °F Hi 58 °F Lo 44 °F Hi 58 °F Lo 41 °F

Flood Watch
Wind Advisory
 

Overnight
 
 A 30 percent chance of rain. Widespread fog, mainly before 1am. Otherwise, cloudy, with a low around 49. Light southeast wind. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
 Rain likely, mainly after 4pm. Cloudy, with a high near 61. South wind 13 to 21 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
 Rain before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain likely and possibly a thunderstorm after 4am. Low around 48. Breezy, with a southeast wind 17 to 24 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Wednesday
 
 Rain, mainly before 1pm, then showers and possibly a thunderstorm after 1pm. Some of the storms could be severe. Areas of fog before 10am. High near 60. Light south southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
 
 Showers and possibly a thunderstorm before 7pm, then rain after 7pm. Some of the storms could be severe. Low around 48. South wind 13 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Christmas Day
 
 Showers and possibly a thunderstorm. High near 58. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday Night
 
 Showers and possibly a thunderstorm before 1am, then rain after 1am. Low around 44. Chance of precipitation is 100%.
Friday
 
 Rain. Patchy fog before noon. Otherwise, cloudy, with a high near 58.
Friday Night
 
 Rain likely, mainly before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 41.
Saturday
 
 A slight chance of rain. Patchy fog before 11am. Otherwise, mostly sunny, with a high near 59.
Saturday Night
 
 Patchy frost. Otherwise, mostly clear, with a low around 37.
Sunday
 
 Areas of frost. Otherwise, sunny, with a high near 61.
Sunday Night
 
 Mostly clear, with a low around 39.
Monday
 
 Mostly sunny, with a high near 63.

 

Forecast from NOAA-NWS for Ben Lomond CA.