National Weather Service Forecast for: Graton CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 12:31 am PDT Jun 30, 2026
 
Overnight

Overnight: Mostly clear, with a low around 53. Calm wind.
Mostly Clear

 Tuesday

Tuesday: Sunny, with a high near 83. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Sunny

 Tuesday
Night
Tuesday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 51. South wind around 5 mph becoming calm in the evening.
Clear then
Patchy Fog
 Wednesday

Wednesday: Patchy fog before 7am. Otherwise, sunny, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Patchy Fog
then Sunny
 Wednesday
Night
Wednesday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 51. Southwest wind around 6 mph becoming calm in the evening.
Mostly Clear
then Patchy
Fog
 Thursday

Thursday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79.
Patchy Fog
then Sunny
 Thursday
Night
Thursday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 51.
Mostly Clear
then Patchy
Fog
 Friday

Friday: Patchy fog before 7am. Otherwise, sunny, with a high near 82.
Patchy Fog
then Sunny
 Friday
Night
Friday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 53.
Clear then
Patchy Fog
Lo 53 °F Hi 83 °F Lo 51 °F Hi 82 °F Lo 51 °F Hi 79 °F Lo 51 °F Hi 82 °F Lo 53 °F

 

Overnight
 
 Mostly clear, with a low around 53. Calm wind.
Tuesday
 
 Sunny, with a high near 83. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Tuesday Night
 
 Patchy fog after 4am. Otherwise, mostly clear, with a low around 51. South wind around 5 mph becoming calm in the evening.
Wednesday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Wednesday Night
 
 Patchy fog after 3am. Otherwise, mostly clear, with a low around 51. Southwest wind around 6 mph becoming calm in the evening.
Thursday
 
 Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79.
Thursday Night
 
 Patchy fog after 3am. Otherwise, mostly clear, with a low around 51.
Friday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 82.
Friday Night
 
 Patchy fog after 3am. Otherwise, mostly clear, with a low around 53.
Independence Day
 
 Sunny, with a high near 83.
Saturday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 52.
Sunday
 
 Patchy fog. Otherwise, partly sunny, with a high near 80.
Sunday Night
 
 Patchy fog. Otherwise, partly cloudy, with a low around 52.
Monday
 
 Patchy fog. Otherwise, mostly sunny, with a high near 80.

 

Forecast from NOAA-NWS for Graton CA.