National Weather Service Forecast for: Guerneville CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:25 am PDT Jun 9, 2025
 
Today

Today: Sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Sunny

Tonight

Tonight: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 53. Southwest wind 5 to 8 mph becoming calm  after midnight.
Mostly Clear
then Patchy
Fog
Tuesday

Tuesday: Patchy fog before 7am.  Otherwise, sunny, with a high near 78. Light south southwest wind becoming southwest 5 to 10 mph in the morning.
Patchy Fog
then Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 50. West southwest wind 5 to 9 mph.
Mostly Clear

Wednesday

Wednesday: Sunny, with a high near 80. Light west wind becoming southwest 5 to 9 mph in the morning.
Sunny

Wednesday
Night
Wednesday Night: Mostly clear, with a low around 51.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 82.
Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 50.
Mostly Clear

Friday

Friday: Sunny, with a high near 78.
Sunny

Hi 80 °F Lo 53 °F Hi 78 °F Lo 50 °F Hi 80 °F Lo 51 °F Hi 82 °F Lo 50 °F Hi 78 °F

 

Today
 
Sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
 
Patchy fog after 4am. Otherwise, mostly clear, with a low around 53. Southwest wind 5 to 8 mph becoming calm after midnight.
Tuesday
 
Patchy fog before 7am. Otherwise, sunny, with a high near 78. Light south southwest wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night
 
Mostly clear, with a low around 50. West southwest wind 5 to 9 mph.
Wednesday
 
Sunny, with a high near 80. Light west wind becoming southwest 5 to 9 mph in the morning.
Wednesday Night
 
Mostly clear, with a low around 51.
Thursday
 
Sunny, with a high near 82.
Thursday Night
 
Mostly clear, with a low around 50.
Friday
 
Sunny, with a high near 78.
Friday Night
 
Mostly clear, with a low around 48.
Saturday
 
Mostly sunny, with a high near 78.
Saturday Night
 
Mostly clear, with a low around 49.
Sunday
 
Sunny, with a high near 80.

 

Forecast from NOAA-NWS for Guerneville CA.