National Weather Service Forecast for: 4 Miles SE Saint Helena CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 am PDT Jul 5, 2025
 
Overnight

Overnight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 48. West wind around 5 mph becoming calm.
Patchy Fog
 Saturday

Saturday: Patchy fog before 7am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 84. Southeast wind 5 to 7 mph becoming southwest in the afternoon.
Patchy Fog
then Sunny
 Saturday
Night
Saturday Night: Increasing clouds, with a low around 48. West southwest wind 5 to 7 mph becoming light and variable.
Increasing
Clouds
 Sunday

Sunday: Partly sunny, then gradually becoming sunny, with a high near 86. Southeast wind 6 to 8 mph.
Becoming
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 49. West southwest wind 5 to 7 mph becoming light and variable after midnight.
Mostly Clear
 Monday

Monday: Sunny, with a high near 85.
Sunny
 Monday
Night
Monday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 51.
Patchy Fog
 Tuesday

Tuesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 82.
Areas Fog
then Sunny
 Tuesday
Night
Tuesday Night: Areas of fog after midnight. Otherwise, mostly clear, with a low around 50.
Clear then
Areas Fog
Lo 48 °F Hi 84 °F Lo 48 °F Hi 86 °F Lo 49 °F Hi 85 °F Lo 51 °F Hi 82 °F Lo 50 °F

 

Overnight
 
 Patchy fog after 5am. Otherwise, partly cloudy, with a low around 48. West wind around 5 mph becoming calm.
Saturday
 
 Patchy fog before 7am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 84. Southeast wind 5 to 7 mph becoming southwest in the afternoon.
Saturday Night
 
 Increasing clouds, with a low around 48. West southwest wind 5 to 7 mph becoming light and variable.
Sunday
 
 Partly sunny, then gradually becoming sunny, with a high near 86. Southeast wind 6 to 8 mph.
Sunday Night
 
 Mostly clear, with a low around 49. West southwest wind 5 to 7 mph becoming light and variable after midnight.
Monday
 
 Sunny, with a high near 85.
Monday Night
 
 Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 51.
Tuesday
 
 Areas of fog before 9am. Otherwise, mostly sunny, with a high near 82.
Tuesday Night
 
 Areas of fog after midnight. Otherwise, mostly clear, with a low around 50.
Wednesday
 
 Areas of fog before 8am. Otherwise, sunny, with a high near 90.
Wednesday Night
 
 Mostly clear, with a low around 56.
Thursday
 
 Sunny and hot, with a high near 97.
Thursday Night
 
 Mostly clear, with a low around 56.
Friday
 
 Sunny, with a high near 94.

 

Forecast from NOAA-NWS for 4 Miles SE Saint Helena CA.