National Weather Service Forecast for: 3 Miles N Saint Helena CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 9:46 am PDT May 4, 2026
 
Today

Today: A 50 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 62. Calm wind becoming west southwest around 6 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Slight Chance
Rain then
Chance Rain
 Tonight

Tonight: Rain, mainly before 1am. Patchy fog after 3am. 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: Areas of fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 67. Calm wind becoming west southwest around 6 mph in the afternoon.
Areas Fog
then Partly
Sunny
 Tuesday
Night
Tuesday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 50. West southwest wind around 6 mph becoming calm in the evening.
Partly Cloudy
then Patchy
Fog
 Wednesday

Wednesday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 76. Light and variable wind.
Areas Fog
then Sunny
 Wednesday
Night
Wednesday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 50.
Mostly Clear
then Patchy
Fog
 Thursday

Thursday: Areas of fog before 9am. Otherwise, sunny, with a high near 77.
Areas Fog
then Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 48.
Mostly Clear

 Friday

Friday: Sunny, with a high near 81.
Sunny
Hi 62 °F Lo 49 °F Hi 67 °F Lo 50 °F Hi 76 °F Lo 50 °F Hi 77 °F Lo 48 °F Hi 81 °F

 

Today
 
 A 50 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 62. Calm wind becoming west southwest around 6 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Tonight
 
 Rain, mainly before 1am. Patchy fog after 3am. 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
 
 Areas of fog before 11am. 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 1am. Otherwise, partly cloudy, with a low around 50. West southwest wind around 6 mph becoming calm in the evening.
Wednesday
 
 Areas of fog before 8am. Otherwise, mostly sunny, with a high near 76. Light and variable wind.
Wednesday Night
 
 Patchy fog after 1am. Otherwise, mostly clear, with a low around 50.
Thursday
 
 Areas of fog before 9am. Otherwise, sunny, with a high near 77.
Thursday Night
 
 Mostly clear, with a low around 48.
Friday
 
 Sunny, with a high near 81.
Friday Night
 
 Clear, with a low around 53.
Saturday
 
 Sunny, with a high near 88.
Saturday Night
 
 Clear, with a low around 57.
Sunday
 
 Sunny, with a high near 92.

 

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