National Weather Service Forecast for: Boonville CA
Issued by: National Weather Service Eureka, CA
Updated: 1:10 am PST Dec 20, 2025
 
Today

Today: Rain, mainly after 1pm. Patchy fog before 10am. High near 58. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Chance Rain
and Patchy
Fog then Rain
 Tonight

Tonight: Rain. The rain could be heavy at times. Low around 51. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Heavy Rain

 Sunday

Sunday: Rain. The rain could be heavy at times. High near 59. South southwest wind 6 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Heavy Rain

 Sunday
Night
Sunday Night: Rain. Low around 46. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain

 Monday

Monday: Rain likely. Mostly cloudy, with a high near 56. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain Likely

 Monday
Night
Monday Night: Rain. Low around 43. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Rain

 Tuesday

Tuesday: Rain. High near 54. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Rain

 Tuesday
Night
Tuesday Night: Rain. Cloudy, with a low around 45.
Rain

 Wednesday

Wednesday: Rain likely. Mostly cloudy, with a high near 53.
Rain Likely
Hi 58 °F Lo 51 °F Hi 59 °F Lo 46 °F Hi 56 °F Lo 43 °F Hi 54 °F Lo 45 °F Hi 53 °F

Flood Watch
 

Today
 
 Rain, mainly after 1pm. Patchy fog before 10am. High near 58. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
 
 Rain. The rain could be heavy at times. Low around 51. South wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Sunday
 
 Rain. The rain could be heavy at times. High near 59. South southwest wind 6 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Sunday Night
 
 Rain. Low around 46. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
 
 Rain likely. Mostly cloudy, with a high near 56. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
 
 Rain. Low around 43. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
 
 Rain. High near 54. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Tuesday Night
 
 Rain. Cloudy, with a low around 45.
Wednesday
 
 Rain likely. Mostly cloudy, with a high near 53.
Wednesday Night
 
 Rain. Cloudy, with a low around 43.
Christmas Day
 
 Rain. Cloudy, with a high near 54.
Thursday Night
 
 Rain. Mostly cloudy, with a low around 40.
Friday
 
 Rain likely. Mostly cloudy, with a high near 54.

 

Forecast from NOAA-NWS for Boonville CA.