National Weather Service Forecast for: Guerneville CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 2:15 am PDT Jun 20, 2025
 
Today

Today: Sunny, with a high near 71. Northwest wind 5 to 15 mph, with gusts as high as 26 mph.
Sunny

 Tonight

Tonight: Mostly clear, with a low around 47. West wind 5 to 14 mph, with gusts as high as 32 mph.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 75. Northwest wind 5 to 10 mph, with gusts as high as 22 mph.
Sunny

 Saturday
Night
Saturday Night: Clear, with a low around 50. North northwest wind 6 to 10 mph, with gusts as high as 24 mph.
Clear

 Sunday

Sunday: Sunny, with a high near 77. North northwest wind 3 to 8 mph.
Sunny

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

 Monday

Monday: Sunny, with a high near 79.
Sunny

 Monday
Night
Monday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 50.
Mostly Clear
then Patchy
Fog
 Tuesday

Tuesday: Sunny, with a high near 76.
Sunny
Hi 71 °F Lo 47 °F Hi 75 °F Lo 50 °F Hi 77 °F Lo 51 °F Hi 79 °F Lo 50 °F Hi 76 °F

 

Today
 
 Sunny, with a high near 71. Northwest wind 5 to 15 mph, with gusts as high as 26 mph.
Tonight
 
 Mostly clear, with a low around 47. West wind 5 to 14 mph, with gusts as high as 32 mph.
Saturday
 
 Sunny, with a high near 75. Northwest wind 5 to 10 mph, with gusts as high as 22 mph.
Saturday Night
 
 Clear, with a low around 50. North northwest wind 6 to 10 mph, with gusts as high as 24 mph.
Sunday
 
 Sunny, with a high near 77. North northwest wind 3 to 8 mph.
Sunday Night
 
 Mostly clear, with a low around 51.
Monday
 
 Sunny, with a high near 79.
Monday Night
 
 Patchy fog after 5am. Otherwise, mostly clear, with a low around 50.
Tuesday
 
 Sunny, with a high near 76.
Tuesday Night
 
 Patchy fog after 3am. Otherwise, mostly clear, with a low around 50.
Wednesday
 
 Patchy fog. Otherwise, sunny, with a high near 78.
Wednesday Night
 
 Mostly clear, with a low around 51.
Thursday
 
 Sunny, with a high near 82.

 

Forecast from NOAA-NWS for Guerneville CA.