National Weather Service Forecast for: Boonville CA
Issued by: National Weather Service Eureka, CA
Updated: 8:50 pm PST Nov 1, 2026
 
Tonight

Tonight: Patchy fog. Otherwise, partly cloudy, with a low around 39. Calm wind.
Patchy Fog

 Monday

Monday: Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 67. South southwest wind 3 to 7 mph.
Patchy Fog
then Mostly
Cloudy
 Monday
Night
Monday Night: Rain, mainly after 4am. Low around 43. South southeast wind 3 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
then Rain

 Tuesday

Tuesday: Rain and possibly a thunderstorm. High near 60. Southeast wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Rain

 Tuesday
Night
Tuesday Night: A 30 percent chance of rain before 10pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 40. Calm wind.
Chance Rain
and Patchy
Fog then
Patchy Fog
 Wednesday

Wednesday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming west northwest around 5 mph in the afternoon.
Areas Fog
then Mostly
Sunny
 Wednesday
Night
Wednesday Night: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 42.
Mostly Cloudy
then Patchy
Fog
 Thursday

Thursday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 69.
Patchy Fog
then Sunny

 Thursday
Night
Thursday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 41.
Partly Cloudy
then Patchy
Fog
Lo 39 °F Hi 67 °F Lo 43 °F Hi 60 °F Lo 40 °F Hi 66 °F Lo 42 °F Hi 69 °F Lo 41 °F

 

Tonight
 
 Patchy fog. Otherwise, partly cloudy, with a low around 39. Calm wind.
Monday
 
 Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 67. South southwest wind 3 to 7 mph.
Monday Night
 
 Rain, mainly after 4am. Low around 43. South southeast wind 3 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
 Rain and possibly a thunderstorm. High near 60. Southeast wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
 
 A 30 percent chance of rain before 10pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 40. Calm wind.
Wednesday
 
 Areas of fog before 10am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming west northwest around 5 mph in the afternoon.
Wednesday Night
 
 Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 42.
Thursday
 
 Patchy fog before 7am. Otherwise, mostly sunny, with a high near 69.
Thursday Night
 
 Patchy fog after 4am. Otherwise, partly cloudy, with a low around 41.
Friday
 
 Patchy fog before 7am. Otherwise, mostly sunny, with a high near 73.
Friday Night
 
 Partly cloudy, with a low around 42.
Saturday
 
 Sunny, with a high near 78.
Saturday Night
 
 Patchy fog. Otherwise, mostly cloudy, with a low around 44.
Sunday
 
 Patchy fog. Otherwise, partly sunny, with a high near 74.

 

Forecast from NOAA-NWS for Boonville CA.