National Weather Service Forecast for: Clearlake CA
Issued by: National Weather Service Eureka, CA
Updated: 10:52 pm PDT Jul 7, 2025
 
Today

Today: Sunny, with a high near 86. South southeast wind 3 to 8 mph.
Sunny
 Tonight

Tonight: Mostly clear, with a low around 54. South wind around 6 mph becoming calm in the evening.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 91. Calm wind becoming west around 6 mph in the afternoon.
Sunny
 Wednesday
Night
Wednesday Night: Clear, with a low around 62. Northwest wind 3 to 8 mph.
Clear
 Thursday

Thursday: Sunny and hot, with a high near 99. Calm wind becoming west southwest around 6 mph in the afternoon.
Hot
 Thursday
Night
Thursday Night: Clear, with a low around 66. West southwest wind around 6 mph becoming calm in the evening.
Clear
 Friday

Friday: Sunny and hot, with a high near 101.
Hot
 Friday
Night
Friday Night: Clear, with a low around 64.
Clear
 Saturday

Saturday: Sunny, with a high near 98.
Sunny
Hi 86 °F Lo 54 °F Hi 91 °F Lo 62 °F Hi 99 °F Lo 66 °F Hi 101 °F Lo 64 °F Hi 98 °F

 

Today
 
 Sunny, with a high near 86. South southeast wind 3 to 8 mph.
Tonight
 
 Mostly clear, with a low around 54. South wind around 6 mph becoming calm in the evening.
Wednesday
 
 Sunny, with a high near 91. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
 
 Clear, with a low around 62. Northwest wind 3 to 8 mph.
Thursday
 
 Sunny and hot, with a high near 99. Calm wind becoming west southwest around 6 mph in the afternoon.
Thursday Night
 
 Clear, with a low around 66. West southwest wind around 6 mph becoming calm in the evening.
Friday
 
 Sunny and hot, with a high near 101.
Friday Night
 
 Clear, with a low around 64.
Saturday
 
 Sunny, with a high near 98.
Saturday Night
 
 Clear, with a low around 62.
Sunday
 
 Sunny, with a high near 98.
Sunday Night
 
 Clear, with a low around 64.
Monday
 
 Sunny and hot, with a high near 100.

 

Forecast from NOAA-NWS for Clearlake CA.