National Weather Service Forecast for: 8 Miles SSW Saint Helena CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 pm PDT Jun 19, 2026
 
Tonight

Tonight: Patchy fog after 1am. Otherwise, increasing clouds, with a low around 51. West southwest wind 5 to 8 mph becoming calm in the evening.
Partly Cloudy
then Patchy
Fog
 Saturday

Saturday: Patchy fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 75. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Patchy Fog
then Sunny
 Saturday
Night
Saturday Night: Patchy fog after midnight. Otherwise, increasing clouds, with a low around 49. West wind 5 to 7 mph becoming calm in the evening.
Partly Cloudy
then Patchy
Fog
 Sunday

Sunday: Patchy fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Patchy Fog
then Sunny
 Sunday
Night
Sunday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 50. West southwest wind 5 to 7 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Monday

Monday: Sunny, with a high near 83.
Sunny

 Monday
Night
Monday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 52.
Clear then
Patchy Fog
 Tuesday

Tuesday: Sunny, with a high near 84.
Sunny

 Tuesday
Night
Tuesday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 52.
Clear then
Patchy Fog
Lo 51 °F Hi 75 °F Lo 49 °F Hi 82 °F Lo 50 °F Hi 83 °F Lo 52 °F Hi 84 °F Lo 52 °F

 

Tonight
 
 Patchy fog after 1am. Otherwise, increasing clouds, with a low around 51. West southwest wind 5 to 8 mph becoming calm in the evening.
Saturday
 
 Patchy fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 75. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Saturday Night
 
 Patchy fog after midnight. Otherwise, increasing clouds, with a low around 49. West wind 5 to 7 mph becoming calm in the evening.
Sunday
 
 Patchy fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
 
 Patchy fog after 3am. Otherwise, mostly clear, with a low around 50. West southwest wind 5 to 7 mph becoming calm in the evening.
Monday
 
 Sunny, with a high near 83.
Monday Night
 
 Patchy fog after 1am. Otherwise, mostly clear, with a low around 52.
Tuesday
 
 Sunny, with a high near 84.
Tuesday Night
 
 Patchy fog after 2am. Otherwise, mostly clear, with a low around 52.
Wednesday
 
 Sunny, with a high near 86.
Wednesday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 52.
Thursday
 
 Sunny, with a high near 85.
Thursday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 52.
Friday
 
 Sunny, with a high near 86.

 

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