National Weather Service Forecast for: Boonville CA
Issued by: National Weather Service Eureka, CA
Updated: 2:10 pm PDT May 26, 2026
 
Tonight

Tonight: Mostly cloudy, with a low around 43. Breezy, with a northwest wind 8 to 17 mph, with gusts as high as 30 mph.
Mostly Cloudy
and Breezy
then Mostly
Cloudy
 Wednesday

Wednesday: Mostly sunny, then becoming cloudy during the afternoon, with a high near 71. Northwest wind 7 to 9 mph.
Becoming
Cloudy

 Wednesday
Night
Wednesday Night: A 20 percent chance of showers after 11pm. Areas of fog after 2am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 49. Northwest wind 5 to 7 mph becoming calm in the evening.
Slight Chance
Showers and
Areas Fog
 Thursday

Thursday: A 20 percent chance of showers after 11am. Areas of fog before 11am. Otherwise, mostly sunny, with a high near 72. Calm wind becoming west southwest around 5 mph in the afternoon.
Slight Chance
Showers and
Areas Fog
 Thursday
Night
Thursday Night: A 20 percent chance of showers after 11pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 47. West wind around 5 mph becoming calm in the evening.
Slight Chance
Showers and
Patchy Fog
 Friday

Friday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 72. Calm wind becoming west northwest around 6 mph in the afternoon.
Patchy Fog
then Mostly
Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 46.
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 70.
Mostly Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 44.
Mostly Clear
Lo 43 °F Hi 71 °F Lo 49 °F Hi 72 °F Lo 47 °F Hi 72 °F Lo 46 °F Hi 70 °F Lo 44 °F

 

Tonight
 
 Mostly cloudy, with a low around 43. Breezy, with a northwest wind 8 to 17 mph, with gusts as high as 30 mph.
Wednesday
 
 Mostly sunny, then becoming cloudy during the afternoon, with a high near 71. Northwest wind 7 to 9 mph.
Wednesday Night
 
 A 20 percent chance of showers after 11pm. Areas of fog after 2am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 49. Northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
 
 A 20 percent chance of showers after 11am. Areas of fog before 11am. Otherwise, mostly sunny, with a high near 72. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
 
 A 20 percent chance of showers after 11pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 47. West wind around 5 mph becoming calm in the evening.
Friday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 72. Calm wind becoming west northwest around 6 mph in the afternoon.
Friday Night
 
 Partly cloudy, with a low around 46.
Saturday
 
 Mostly sunny, with a high near 70.
Saturday Night
 
 Mostly clear, with a low around 44.
Sunday
 
 Sunny, with a high near 78.
Sunday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 47.
Monday
 
 Patchy fog. Otherwise, sunny, with a high near 83.
Monday Night
 
 Mostly clear, with a low around 49.
Tuesday
 
 Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Boonville CA.