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 am PDT Jun 22, 2026
 
Overnight

Overnight: Patchy fog after 3am. Otherwise, partly cloudy, with a steady temperature around 53. Calm wind.
Patchy Fog

 Monday

Monday: Patchy fog before 7am. Otherwise, sunny, with a high near 83. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 50. West wind around 5 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Tuesday

Tuesday: Partly sunny, then gradually becoming sunny, with a high near 85. Calm wind becoming west southwest around 6 mph in the afternoon.
Becoming
Sunny
 Tuesday
Night
Tuesday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 51. West southwest wind around 6 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Wednesday

Wednesday: Patchy fog before 7am. Otherwise, sunny, with a high near 85.
Patchy Fog
then Sunny
 Wednesday
Night
Wednesday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 51.
Mostly Clear
then Patchy
Fog
 Thursday

Thursday: Sunny, with a high near 85.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 53.
Mostly Clear
Lo 53 °F Hi 83 °F Lo 50 °F Hi 85 °F Lo 51 °F Hi 85 °F Lo 51 °F Hi 85 °F Lo 53 °F

 

Overnight
 
 Patchy fog after 3am. Otherwise, partly cloudy, with a steady temperature around 53. Calm wind.
Monday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 83. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Monday Night
 
 Patchy fog after 2am. Otherwise, increasing clouds, with a low around 50. West wind around 5 mph becoming calm in the evening.
Tuesday
 
 Partly sunny, then gradually becoming sunny, with a high near 85. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
 
 Patchy fog after 3am. Otherwise, mostly clear, with a low around 51. West southwest wind around 6 mph becoming calm in the evening.
Wednesday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 85.
Wednesday Night
 
 Patchy fog after 2am. Otherwise, mostly clear, with a low around 51.
Thursday
 
 Sunny, with a high near 85.
Thursday Night
 
 Mostly clear, with a low around 53.
Friday
 
 Sunny, with a high near 82.
Friday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 54.
Saturday
 
 Sunny, with a high near 82.
Saturday Night
 
 Mostly clear, with a low around 52.
Sunday
 
 Sunny, with a high near 86.

 

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