National Weather Service Forecast for: Boonville CA
Issued by: National Weather Service Eureka, CA
Updated: 2:10 pm PDT Jun 19, 2026
 
Tonight

Tonight: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 50. South southwest wind around 5 mph becoming calm in the evening.
Patchy Fog

 Saturday

Saturday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Patchy Fog
then Mostly
Sunny
 Saturday
Night
Saturday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 50. Northwest wind around 6 mph becoming calm in the evening.
Patchy Fog

 Sunday

Sunday: Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.
Patchy Fog
then Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 53. West wind around 6 mph becoming calm in the evening.
Mostly Clear

 Monday

Monday: Sunny, with a high near 91. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunny

 Monday
Night
Monday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 54.
Patchy Fog

 Tuesday

Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 90.
Patchy Fog
then Sunny
 Tuesday
Night
Tuesday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 54.
Patchy Fog
Lo 50 °F Hi 78 °F Lo 50 °F Hi 86 °F Lo 53 °F Hi 91 °F Lo 54 °F Hi 90 °F Lo 54 °F

 

Tonight
 
 Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 50. South southwest wind around 5 mph becoming calm in the evening.
Saturday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Saturday Night
 
 Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 50. Northwest wind around 6 mph becoming calm in the evening.
Sunday
 
 Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
 
 Mostly clear, with a low around 53. West wind around 6 mph becoming calm in the evening.
Monday
 
 Sunny, with a high near 91. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
 
 Patchy fog after 11pm. Otherwise, mostly clear, with a low around 54.
Tuesday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 90.
Tuesday Night
 
 Patchy fog after 11pm. Otherwise, mostly clear, with a low around 54.
Wednesday
 
 Patchy fog before 8am. Otherwise, sunny, with a high near 90.
Wednesday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 53.
Thursday
 
 Patchy fog. Otherwise, sunny, with a high near 87.
Thursday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 52.
Friday
 
 Sunny, with a high near 84.

 

Forecast from NOAA-NWS for Boonville CA.