National Weather Service Forecast for: Clearlake CA
Issued by: National Weather Service Eureka, CA
Updated: 1:10 pm PST Dec 23, 2025
 
Tonight

Tonight: Rain before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain and possibly a thunderstorm after 4am. Low around 43. Windy, with a southeast wind 17 to 22 mph increasing to 24 to 29 mph in the evening. Winds could gust as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Showers and
Windy
 Wednesday

Wednesday: Rain. High near 55. Southwest wind 6 to 8 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain then
Rain Likely
 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Low around 42. Breezy, with a south southeast wind 10 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Showers and
Breezy
 Christmas
Day
Christmas Day: Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain and possibly a thunderstorm after 4pm. High near 50. Breezy, with a south wind 14 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and
Breezy
 Thursday
Night
Thursday Night: Rain. Low around 39. South southwest wind 6 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Rain

 Friday

Friday: Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 50. South wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Showers

 Friday
Night
Friday Night: Rain likely, mainly before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 34. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain Likely
and Patchy
Fog
 Saturday

Saturday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 53.
Patchy Fog
then Mostly
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 32.
Mostly Clear
Lo 43 °F Hi 55 °F Lo 42 °F Hi 50 °F Lo 39 °F Hi 50 °F Lo 34 °F Hi 53 °F Lo 32 °F

Flood Watch
High Wind Warning
 

Tonight
 
 Rain before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain and possibly a thunderstorm after 4am. Low around 43. Windy, with a southeast wind 17 to 22 mph increasing to 24 to 29 mph in the evening. Winds could gust as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Wednesday
 
 Rain. High near 55. Southwest wind 6 to 8 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
 
 Showers and possibly a thunderstorm. Low around 42. Breezy, with a south southeast wind 10 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Christmas Day
 
 Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain and possibly a thunderstorm after 4pm. High near 50. Breezy, with a south wind 14 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
 
 Rain. Low around 39. South southwest wind 6 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
 
 Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 50. South wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
 
 Rain likely, mainly before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 34. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
 
 Patchy fog before 10am. Otherwise, mostly sunny, with a high near 53.
Saturday Night
 
 Mostly clear, with a low around 32.
Sunday
 
 Sunny, with a high near 57.
Sunday Night
 
 Mostly clear, with a low around 34.
Monday
 
 Sunny, with a high near 60.
Monday Night
 
 Mostly clear, with a low around 37.
Tuesday
 
 Sunny, with a high near 61.

 

Forecast from NOAA-NWS for Clearlake CA.