National Weather Service Forecast for: 8 Miles SSW Saint Helena CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 2:54 pm PST Dec 22, 2025
 
This
Afternoon
This Afternoon: Rain. Patchy fog after 5pm. High near 55. Light west wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Rain and
Patchy Fog
 Tonight

Tonight: Rain. Areas of fog. Low around 50. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain and
Areas Fog
 Tuesday

Tuesday: Rain. High near 54. Southeast wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Tuesday
Night
Tuesday Night: Rain. Low around 45. Southeast wind around 17 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Rain
 Wednesday

Wednesday: Rain. High near 53. Southwest wind 6 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain
 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Showers
 Christmas
Day
Christmas Day: Showers and possibly a thunderstorm. High near 51. Chance of precipitation is 100%.
Showers
 Thursday
Night
Thursday Night: Rain. Cloudy, with a low around 44.
Rain
 Friday

Friday: Rain. Mostly cloudy, with a high near 49.
Rain
Hi 55 °F Lo 50 °F Hi 54 °F Lo 45 °F Hi 53 °F Lo 48 °F Hi 51 °F Lo 44 °F Hi 49 °F

Flood Watch
High Wind Watch
 

This Afternoon
 
 Rain. Patchy fog after 5pm. High near 55. Light west wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
 
 Rain. Areas of fog. Low around 50. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
 
 Rain. High near 54. Southeast wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
 
 Rain. Low around 45. Southeast wind around 17 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
 
 Rain. High near 53. Southwest wind 6 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
 
 Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Christmas Day
 
 Showers and possibly a thunderstorm. High near 51. Chance of precipitation is 100%.
Thursday Night
 
 Rain. Cloudy, with a low around 44.
Friday
 
 Rain. Mostly cloudy, with a high near 49.
Friday Night
 
 A chance of rain. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 40.
Saturday
 
 Patchy fog. Otherwise, mostly sunny, with a high near 53.
Saturday Night
 
 Patchy frost. Otherwise, mostly clear, with a low around 38.
Sunday
 
 Areas of frost. Otherwise, sunny, with a high near 54.
Sunday Night
 
 Areas of frost. Otherwise, partly cloudy, with a low around 38.
Monday
 
 Patchy frost. Otherwise, mostly sunny, with a high near 54.

 

Forecast from NOAA-NWS for 8 Miles SSW Saint Helena CA.