National Weather Service Forecast for: Clearlake CA
Issued by: National Weather Service Eureka, CA
Updated: 3:16 pm PDT Apr 26, 2025
 
Overnight

Overnight: A 40 percent chance of rain. Mostly cloudy, with a low around 42. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain

 Sunday

Sunday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 60. Calm wind becoming west around 5 mph.
Patchy Fog
then Mostly
Cloudy
 Sunday
Night
Sunday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 41. East southeast wind around 5 mph becoming calm in the evening.
Mostly Cloudy
then Patchy
Fog
 Monday

Monday: Patchy fog before 11am. Otherwise, sunny, with a high near 74. Calm wind becoming west northwest around 6 mph in the afternoon.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 48. Northwest wind around 5 mph becoming calm in the evening.
Mostly Clear

 Tuesday

Tuesday: Mostly sunny, with a high near 78. Calm wind becoming west southwest around 6 mph in the afternoon.
Mostly Sunny

 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 51.
Partly Cloudy

 Wednesday

Wednesday: Sunny, with a high near 80.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 52.
Mostly Clear
Lo 42 °F Hi 60 °F Lo 41 °F Hi 74 °F Lo 48 °F Hi 78 °F Lo 51 °F Hi 80 °F Lo 52 °F

 

Overnight
 
 A 40 percent chance of rain. Mostly cloudy, with a low around 42. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Sunday
 
 Patchy fog before 11am. Otherwise, partly sunny, with a high near 60. Calm wind becoming west around 5 mph.
Sunday Night
 
 Patchy fog after 2am. Otherwise, partly cloudy, with a low around 41. East southeast wind around 5 mph becoming calm in the evening.
Monday
 
 Patchy fog before 11am. Otherwise, sunny, with a high near 74. Calm wind becoming west northwest around 6 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 48. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
 
 Mostly sunny, with a high near 78. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
 
 Partly cloudy, with a low around 51.
Wednesday
 
 Sunny, with a high near 80.
Wednesday Night
 
 Mostly clear, with a low around 52.
Thursday
 
 Sunny, with a high near 81.
Thursday Night
 
 Mostly clear, with a low around 49.
Friday
 
 Mostly sunny, with a high near 72.
Friday Night
 
 A slight chance of rain. Partly cloudy, with a low around 44.
Saturday
 
 Mostly sunny, with a high near 66.

 

Forecast from NOAA-NWS for Clearlake CA.