National Weather Service Forecast for: 8 Miles SSW Saint Helena CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:26 am PDT May 4, 2026
 
Today

Today: A 40 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 62. West southwest wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain

 Tonight

Tonight: Rain, mainly before 2am. Patchy fog after 4am. Low around 49. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Rain and
Patchy Fog
 Tuesday

Tuesday: Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 67. Calm wind becoming west southwest around 6 mph in the afternoon.
Patchy Fog
then Partly
Sunny
 Tuesday
Night
Tuesday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 49. West southwest wind 5 to 7 mph becoming calm in the evening.
Partly Cloudy
then Patchy
Fog
 Wednesday

Wednesday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming west southwest around 6 mph in the afternoon.
Patchy Fog
then Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 49.
Partly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 75.
Mostly Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 47.
Mostly Clear

 Friday

Friday: Mostly sunny, with a high near 79.
Mostly Sunny
Hi 62 °F Lo 49 °F Hi 67 °F Lo 49 °F Hi 74 °F Lo 49 °F Hi 75 °F Lo 47 °F Hi 79 °F

 

Today
 
 A 40 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 62. West southwest wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
 
 Rain, mainly before 2am. Patchy fog after 4am. Low around 49. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
 
 Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 67. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
 
 Patchy fog after 3am. Otherwise, partly cloudy, with a low around 49. West southwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
 
 Patchy fog before 7am. Otherwise, mostly sunny, with a high near 74. Calm wind becoming west southwest around 6 mph in the afternoon.
Wednesday Night
 
 Partly cloudy, with a low around 49.
Thursday
 
 Mostly sunny, with a high near 75.
Thursday Night
 
 Mostly clear, with a low around 47.
Friday
 
 Mostly sunny, with a high near 79.
Friday Night
 
 Clear, with a low around 52.
Saturday
 
 Sunny, with a high near 86.
Saturday Night
 
 Clear, with a low around 56.
Sunday
 
 Sunny, with a high near 90.

 

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