National Weather Service Forecast for: Boonville CA
Issued by: National Weather Service Eureka, CA
Updated: 2:10 pm PDT Apr 6, 2026
 
Tonight

Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 40. Light northwest wind.
Patchy Fog

 Tuesday

Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74. Light northwest wind becoming west northwest 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 43. Northwest wind around 6 mph becoming calm in the evening.
Partly Cloudy

 Wednesday

Wednesday: A 20 percent chance of showers after 11am. Mostly sunny, with a high near 75. Calm wind becoming west around 6 mph in the afternoon.
Slight Chance
Showers
 Wednesday
Night
Wednesday Night: A 30 percent chance of showers. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 48. West wind around 6 mph becoming calm in the evening.
Chance
Showers and
Patchy Fog
 Thursday

Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 70. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely and
Patchy Fog
 Thursday
Night
Thursday Night: A 40 percent chance of rain. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 45. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
and Patchy
Fog
 Friday

Friday: Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 68.
Showers
Likely and
Patchy Fog
 Friday
Night
Friday Night: A chance of rain. Mostly cloudy, with a low around 44.
Chance Rain
Lo 40 °F Hi 74 °F Lo 43 °F Hi 75 °F Lo 48 °F Hi 70 °F Lo 45 °F Hi 68 °F Lo 44 °F

 

Tonight
 
 Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 40. Light northwest wind.
Tuesday
 
 Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74. Light northwest wind becoming west northwest 5 to 10 mph in the afternoon.
Tuesday Night
 
 Partly cloudy, with a low around 43. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
 
 A 20 percent chance of showers after 11am. Mostly sunny, with a high near 75. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
 
 A 30 percent chance of showers. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 48. West wind around 6 mph becoming calm in the evening.
Thursday
 
 A chance of showers, then showers likely and possibly a thunderstorm after 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 70. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
 A 40 percent chance of rain. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 45. New precipitation amounts of less than a tenth of an inch possible.
Friday
 
 Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 68.
Friday Night
 
 A chance of rain. Mostly cloudy, with a low around 44.
Saturday
 
 A chance of rain. Partly sunny, with a high near 64.
Saturday Night
 
 A chance of rain. Mostly cloudy, with a low around 39.
Sunday
 
 A chance of rain. Partly sunny, with a high near 64.
Sunday Night
 
 A slight chance of rain. Partly cloudy, with a low around 39.
Monday
 
 Mostly sunny, with a high near 67.

 

Forecast from NOAA-NWS for Boonville CA.