National Weather Service Forecast for: Clearlake CA
Issued by: National Weather Service Eureka, CA
Updated: 11:21 pm PDT Jul 25, 2025
 
Today

Today: Sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the afternoon.
Sunny
Tonight

Tonight: Mostly clear, with a low around 55. West wind 5 to 8 mph becoming calm  in the evening.
Mostly Clear
Sunday

Sunday: Sunny, with a high near 89. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunny
Sunday
Night
Sunday Night: Mostly clear, with a low around 57. West wind 5 to 8 mph becoming calm  in the evening.
Mostly Clear
Monday

Monday: Sunny, with a high near 92. Calm wind becoming south around 6 mph in the afternoon.
Sunny
Monday
Night
Monday Night: Mostly clear, with a low around 59. West southwest wind 5 to 7 mph becoming calm  in the evening.
Mostly Clear
Tuesday

Tuesday: Sunny, with a high near 95.
Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 60.
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 92.
Sunny
Hi 86 °F Lo 55 °F Hi 89 °F Lo 57 °F Hi 92 °F Lo 59 °F Hi 95 °F Lo 60 °F Hi 92 °F

 

Today
 
Sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
 
Mostly clear, with a low around 55. West wind 5 to 8 mph becoming calm in the evening.
Sunday
 
Sunny, with a high near 89. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunday Night
 
Mostly clear, with a low around 57. West wind 5 to 8 mph becoming calm in the evening.
Monday
 
Sunny, with a high near 92. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
 
Mostly clear, with a low around 59. West southwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
 
Sunny, with a high near 95.
Tuesday Night
 
Mostly clear, with a low around 60.
Wednesday
 
Sunny, with a high near 92.
Wednesday Night
 
Mostly clear, with a low around 58.
Thursday
 
Sunny, with a high near 91.
Thursday Night
 
Clear, with a low around 59.
Friday
 
Sunny, with a high near 91.

 

Forecast from NOAA-NWS for Clearlake CA.