| National Weather Service Forecast for:
Portola Valley CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
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| Updated: 1:40 am PST Dec 5, 2025 | ||||||||||||||||||
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| Overnight |
Clear, with a low around 43. Calm wind. |
| Friday |
Sunny, with a high near 62. North wind 3 to 7 mph. |
| Friday Night |
Patchy fog after 5am. Otherwise, mostly clear, with a low around 45. Calm wind becoming southwest 5 to 7 mph. |
| Saturday |
Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 62. Calm wind becoming north 5 to 8 mph in the morning. |
| Saturday Night |
Mostly clear, with a low around 45. Northwest wind 5 to 7 mph becoming light and variable after midnight. |
| Sunday |
Mostly sunny, with a high near 65. |
| Sunday Night |
Partly cloudy, with a low around 46. |
| Monday |
Sunny, with a high near 64. |
| Monday Night |
Mostly clear, with a low around 46. |
| Tuesday |
Mostly sunny, with a high near 66. |
| Tuesday Night |
Partly cloudy, with a low around 48. |
| Wednesday |
Mostly sunny, with a high near 66. |
| Wednesday Night |
Mostly clear, with a low around 48. |
| Thursday |
Sunny, with a high near 67. |
Forecast from NOAA-NWS for Portola Valley CA.
