| National Weather Service Forecast for:
Guerneville CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
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| Updated: 1:36 pm PDT Jul 12, 2026 | ||||||||||||||||||
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| Tonight |
Mostly cloudy, with a low around 58. Calm wind. |
| Monday |
Mostly cloudy, then gradually becoming sunny, with a high near 91. Calm wind becoming southwest around 6 mph in the afternoon. |
| Monday Night |
Mostly clear, with a low around 63. Light and variable wind. |
| Tuesday |
Sunny, with a high near 94. Calm wind becoming west southwest 5 to 7 mph in the afternoon. |
| Tuesday Night |
Mostly clear, with a low around 63. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 18 mph. |
| Wednesday |
Sunny, with a high near 92. |
| Wednesday Night |
Mostly clear, with a low around 56. |
| Thursday |
Sunny, with a high near 82. |
| Thursday Night |
Mostly clear, with a low around 52. |
| Friday |
Mostly sunny, with a high near 74. |
| Friday Night |
Partly cloudy, with a low around 53. |
| Saturday |
Mostly sunny, with a high near 72. |
| Saturday Night |
Partly cloudy, with a low around 55. |
| Sunday |
A slight chance of rain. Partly sunny, with a high near 74. |
Forecast from NOAA-NWS for Guerneville CA.
