National Weather Service Forecast for: Helena CA
Issued by: National Weather Service Eureka, CA
Updated: 1:10 am PST Dec 22, 2025
 
Overnight

Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 39. Calm wind.
Slight Chance
Showers
 Monday

Monday: A slight chance of showers before 10am, then a chance of showers after 1pm. Mostly cloudy, with a high near 51. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Chance
Showers
 Monday
Night
Monday Night: Rain likely, mainly after 1am. Cloudy, with a low around 37. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Chance Rain
then Rain
Likely
 Tuesday

Tuesday: Rain. High near 47. East wind 3 to 6 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Rain

 Tuesday
Night
Tuesday Night: Rain. Low around 39. Breezy, with an east southeast wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Rain and
Breezy
 Wednesday

Wednesday: Rain. High near 47. East southeast wind 7 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain

 Wednesday
Night
Wednesday Night: Rain. Low around 39. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Rain

 Christmas
Day
Christmas Day: Rain before 10am, then showers and possibly a thunderstorm after 10am. Cloudy, with a high near 45.
Showers

 Thursday
Night
Thursday Night: Rain. Cloudy, with a low around 36.
Rain
Lo 39 °F Hi 51 °F Lo 37 °F Hi 47 °F Lo 39 °F Hi 47 °F Lo 39 °F Hi 45 °F Lo 36 °F

 

Overnight
 
 A 20 percent chance of showers. Mostly cloudy, with a low around 39. Calm wind.
Monday
 
 A slight chance of showers before 10am, then a chance of showers after 1pm. Mostly cloudy, with a high near 51. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
 
 Rain likely, mainly after 1am. Cloudy, with a low around 37. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
 
 Rain. High near 47. East wind 3 to 6 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tuesday Night
 
 Rain. Low around 39. Breezy, with an east southeast wind around 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Wednesday
 
 Rain. High near 47. East southeast wind 7 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
 
 Rain. Low around 39. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Christmas Day
 
 Rain before 10am, then showers and possibly a thunderstorm after 10am. Cloudy, with a high near 45.
Thursday Night
 
 Rain. Cloudy, with a low around 36.
Friday
 
 Rain likely, mainly before 4pm. Mostly cloudy, with a high near 45.
Friday Night
 
 A chance of rain. Mostly cloudy, with a low around 30.
Saturday
 
 Mostly sunny, with a high near 48.
Saturday Night
 
 Mostly cloudy, with a low around 31.
Sunday
 
 Partly sunny, with a high near 52.

 

Forecast from NOAA-NWS for Helena CA.