National Weather Service Forecast for: 3 Miles N 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. Otherwise, mostly cloudy, with a steady temperature around 56. Calm wind.
Chance Rain
and Patchy
Fog
 Tonight

Tonight: Rain likely, mainly after 10pm. Areas of fog before 1am. Otherwise, cloudy, with a low around 51. Light south southeast 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 11am, then patchy fog after 5pm. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 60. Light and variable wind. 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 after 10pm. Otherwise, mostly cloudy, with a low around 43. Calm wind.
Fog

 Thursday

Thursday: A 20 percent chance of rain after 10am. Widespread fog before 3pm, then patchy fog after 5pm. Otherwise, partly sunny, with a high near 58. Calm wind.
Slight Chance
Rain and Fog
 Thursday
Night
Thursday Night: A 50 percent chance of rain. Widespread fog, mainly after 1am. Otherwise, cloudy, with a low around 49. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
and Fog
 Friday

Friday: Rain likely, mainly after 10am. Widespread fog, mainly before 7am. Otherwise, cloudy, with a high near 55. Chance of precipitation is 70%.
Rain Likely
and Fog
 Friday
Night
Friday Night: Rain. Patchy fog after 10pm. Otherwise, cloudy, with a low around 52.
Rain and
Patchy Fog
 Saturday

Saturday: Rain. Areas of fog before 10am. Otherwise, cloudy, with a high near 56.
Rain and
Areas Fog
Hi 56 °F Lo 51 °F Hi 60 °F Lo 43 °F Hi 58 °F Lo 49 °F Hi 55 °F Lo 52 °F Hi 56 °F

 

This Afternoon
 
 A 30 percent chance of rain. Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 56. Calm wind.
Tonight
 
 Rain likely, mainly after 10pm. Areas of fog before 1am. Otherwise, cloudy, with a low around 51. Light south southeast 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 11am, then patchy fog after 5pm. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 60. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
 
 Widespread fog, mainly after 10pm. Otherwise, mostly cloudy, with a low around 43. Calm wind.
Thursday
 
 A 20 percent chance of rain after 10am. Widespread fog before 3pm, then patchy fog after 5pm. Otherwise, partly sunny, with a high near 58. Calm wind.
Thursday Night
 
 A 50 percent chance of rain. Widespread fog, mainly after 1am. Otherwise, cloudy, with a low around 49. New precipitation amounts of less than a tenth of an inch possible.
Friday
 
 Rain likely, mainly after 10am. Widespread fog, mainly before 7am. Otherwise, cloudy, with a high near 55. Chance of precipitation is 70%.
Friday Night
 
 Rain. Patchy fog after 10pm. Otherwise, cloudy, with a low around 52.
Saturday
 
 Rain. Areas of fog before 10am. Otherwise, cloudy, with a high near 56.
Saturday Night
 
 Rain. Patchy fog. Otherwise, cloudy, with a low around 52.
Sunday
 
 Rain. Patchy fog. Otherwise, cloudy, with a high near 56.
Sunday Night
 
 Rain. Patchy fog. Otherwise, cloudy, with a low around 50.
Monday
 
 Rain likely. Patchy fog. Otherwise, cloudy, with a high near 54.
Monday Night
 
 Rain likely. Patchy fog. Otherwise, cloudy, with a low around 47.
Tuesday
 
 Rain likely. Patchy fog. Otherwise, mostly cloudy, with a high near 54.

 

Forecast from NOAA-NWS for 3 Miles N Saint Helena CA.