National Weather Service Forecast for: Guerneville CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 pm PDT Jun 15, 2025
 
Tonight

Tonight: Partly cloudy, with a low around 48. Southwest wind around 7 mph.
Partly Cloudy
Monday

Monday: Sunny, with a high near 78. West northwest wind 6 to 11 mph, with gusts as high as 21 mph.
Sunny
Monday
Night
Monday Night: Clear, with a low around 52. West northwest wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Clear
Tuesday

Tuesday: Sunny, with a high near 82. Light west wind becoming west northwest 5 to 9 mph in the afternoon.
Sunny
Tuesday
Night
Tuesday Night: Clear, with a low around 55. West southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Clear
Wednesday

Wednesday: Sunny, with a high near 85.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 51.
Mostly Clear
Juneteenth

Juneteenth: Sunny, with a high near 78.
Sunny
Thursday
Night
Thursday Night: Clear, with a low around 49.
Clear
Lo 48 °F Hi 78 °F Lo 52 °F Hi 82 °F Lo 55 °F Hi 85 °F Lo 51 °F Hi 78 °F Lo 49 °F

 

Tonight
 
Partly cloudy, with a low around 48. Southwest wind around 7 mph.
Monday
 
Sunny, with a high near 78. West northwest wind 6 to 11 mph, with gusts as high as 21 mph.
Monday Night
 
Clear, with a low around 52. West northwest wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Tuesday
 
Sunny, with a high near 82. Light west wind becoming west northwest 5 to 9 mph in the afternoon.
Tuesday Night
 
Clear, with a low around 55. West southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Wednesday
 
Sunny, with a high near 85.
Wednesday Night
 
Mostly clear, with a low around 51.
Juneteenth
 
Sunny, with a high near 78.
Thursday Night
 
Clear, with a low around 49.
Friday
 
Sunny, with a high near 76.
Friday Night
 
Clear, with a low around 49.
Saturday
 
Sunny, with a high near 76.
Saturday Night
 
Clear, with a low around 50.
Sunday
 
Sunny, with a high near 79.

 

Forecast from NOAA-NWS for Guerneville CA.