National Weather Service Forecast for: 3 Miles N Saint Helena CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 pm PDT Jun 14, 2025
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 80. Light and variable wind becoming west southwest 5 to 7 mph.
Mostly Sunny

 Tonight

Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 48. West southwest wind around 6 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Sunday

Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Becoming
Sunny
 Sunday
Night
Sunday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 47. West wind around 6 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Monday

Monday: Patchy fog before 7am. Otherwise, sunny, with a high near 83. Calm wind becoming west 5 to 8 mph in the afternoon.
Patchy Fog
then Sunny
 Monday
Night
Monday Night: Clear, with a low around 51.
Clear

 Tuesday

Tuesday: Sunny, with a high near 88.
Sunny

 Tuesday
Night
Tuesday Night: Clear, with a low around 57.
Clear

 Wednesday

Wednesday: Sunny, with a high near 92.
Sunny
Hi 80 °F Lo 48 °F Hi 82 °F Lo 47 °F Hi 83 °F Lo 51 °F Hi 88 °F Lo 57 °F Hi 92 °F

 

This Afternoon
 
 Mostly sunny, with a high near 80. Light and variable wind becoming west southwest 5 to 7 mph.
Tonight
 
 Patchy fog after 3am. Otherwise, partly cloudy, with a low around 48. West southwest wind around 6 mph becoming calm in the evening.
Sunday
 
 Mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Sunday Night
 
 Patchy fog after 3am. Otherwise, partly cloudy, with a low around 47. West wind around 6 mph becoming calm in the evening.
Monday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 83. Calm wind becoming west 5 to 8 mph in the afternoon.
Monday Night
 
 Clear, with a low around 51.
Tuesday
 
 Sunny, with a high near 88.
Tuesday Night
 
 Clear, with a low around 57.
Wednesday
 
 Sunny, with a high near 92.
Wednesday Night
 
 Mostly clear, with a low around 53.
Juneteenth
 
 Sunny, with a high near 84.
Thursday Night
 
 Clear, with a low around 49.
Friday
 
 Sunny, with a high near 80.

 

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