National Weather Service Forecast for: 8 Miles SSW Saint Helena CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 12:28 pm PST Dec 16, 2025
 
This
Afternoon
This Afternoon: A 30 percent chance of rain. Patchy fog after 4pm. Otherwise, cloudy, with a high near 57. Light south wind. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
and Patchy
Fog
 Tonight

Tonight: Rain likely, mainly after 10pm. Areas of fog. Otherwise, cloudy, with a low around 52. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain Likely
and Areas Fog
 Wednesday

Wednesday: Rain likely, mainly before 10am. Patchy fog before 7am, then patchy fog after 5pm. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 59. West southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely
and Patchy
Fog
 Wednesday
Night
Wednesday Night: Widespread fog, mainly between 10pm and 2am. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Fog

 Thursday

Thursday: A 20 percent chance of rain after 10am. Areas of fog before 1pm, then patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 57. Light west southwest wind.
Slight Chance
Rain and
Areas Fog
 Thursday
Night
Thursday Night: A 50 percent chance of rain. Patchy fog. Otherwise, cloudy, with a low around 49. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
and Patchy
Fog
 Friday

Friday: Rain, mainly after 10am. Patchy fog before 10am. High near 56. Chance of precipitation is 80%.
Rain and
Patchy Fog
 Friday
Night
Friday Night: Rain. Patchy fog after 1am. Otherwise, cloudy, with a low around 52.
Rain and
Patchy Fog
 Saturday

Saturday: Rain likely. Areas of fog before 10am. Otherwise, cloudy, with a high near 57.
Rain Likely
and Areas Fog
Hi 57 °F Lo 52 °F Hi 59 °F Lo 44 °F Hi 57 °F Lo 49 °F Hi 56 °F Lo 52 °F Hi 57 °F

 

This Afternoon
 
 A 30 percent chance of rain. Patchy fog after 4pm. Otherwise, cloudy, with a high near 57. Light south wind. New precipitation amounts of less than a tenth of an inch possible.
Tonight
 
 Rain likely, mainly after 10pm. Areas of fog. Otherwise, cloudy, with a low around 52. Calm wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
 
 Rain likely, mainly before 10am. Patchy fog before 7am, then patchy fog after 5pm. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 59. West southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
 
 Widespread fog, mainly between 10pm and 2am. Otherwise, mostly cloudy, with a low around 44. Calm wind.
Thursday
 
 A 20 percent chance of rain after 10am. Areas of fog before 1pm, then patchy fog after 4pm. Otherwise, mostly cloudy, with a high near 57. Light west southwest wind.
Thursday Night
 
 A 50 percent chance of rain. Patchy fog. Otherwise, cloudy, with a low around 49. New precipitation amounts of less than a tenth of an inch possible.
Friday
 
 Rain, mainly after 10am. Patchy fog before 10am. High near 56. Chance of precipitation is 80%.
Friday Night
 
 Rain. Patchy fog after 1am. Otherwise, cloudy, with a low around 52.
Saturday
 
 Rain likely. Areas of fog before 10am. Otherwise, cloudy, with a high near 57.
Saturday Night
 
 Rain. Patchy fog after 1am. Otherwise, cloudy, with a low around 52.
Sunday
 
 Rain. Patchy fog. Otherwise, cloudy, with a high near 56.
Sunday Night
 
 Rain. Cloudy, with a low around 51.
Monday
 
 Rain likely. Cloudy, with a high near 54.

 

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