National Weather Service Forecast for: Helena CA
Issued by: National Weather Service Eureka, CA
Updated: 4:54 pm PST Dec 17, 2025
 
Tonight

Tonight: Rain likely, mainly after 4am. Mostly cloudy, with a low around 43. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely
 Thursday

Thursday: Rain. High near 54. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Rain
 Thursday
Night
Thursday Night: Rain. Low around 46. South wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Friday

Friday: Rain. High near 53. Southwest wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Rain
 Friday
Night
Friday Night: Rain, mainly before 10pm. Low around 39. West wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain then
Chance Rain
 Saturday

Saturday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 51. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Rain Likely
 Saturday
Night
Saturday Night: Rain. Low around 43. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Sunday

Sunday: Rain. Cloudy, with a high near 52.
Rain
 Sunday
Night
Sunday Night: Rain. Cloudy, with a low around 40.
Rain
Lo 43 °F Hi 54 °F Lo 46 °F Hi 53 °F Lo 39 °F Hi 51 °F Lo 43 °F Hi 52 °F Lo 40 °F

 

Tonight
 
 Rain likely, mainly after 4am. Mostly cloudy, with a low around 43. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
 
 Rain. High near 54. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
 
 Rain. Low around 46. South wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
 
 Rain. High near 53. Southwest wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Friday Night
 
 Rain, mainly before 10pm. Low around 39. West wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
 
 Rain likely, mainly after 10am. Mostly cloudy, with a high near 51. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
 
 Rain. Low around 43. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
 
 Rain. Cloudy, with a high near 52.
Sunday Night
 
 Rain. Cloudy, with a low around 40.
Monday
 
 Rain. Mostly cloudy, with a high near 49.
Monday Night
 
 Rain likely. Mostly cloudy, with a low around 35.
Tuesday
 
 Rain likely. Mostly cloudy, with a high near 47.
Tuesday Night
 
 Rain likely. Mostly cloudy, with a low around 36.
Wednesday
 
 Rain likely. Mostly cloudy, with a high near 48.

 

Forecast from NOAA-NWS for Helena CA.