| National Weather Service Forecast for:
Portola Valley CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
||||||||||||||||||
| Updated: 8:46 pm PDT Sep 12, 2026 | ||||||||||||||||||
|
| Tonight |
Mostly clear, with a low around 53. West wind 13 to 16 mph, with gusts as high as 30 mph. |
| Sunday |
Sunny, with a high near 72. West northwest wind 11 to 18 mph, with gusts as high as 30 mph. |
| Sunday Night |
Mostly clear, with a low around 51. West northwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 29 mph. |
| Monday |
Sunny, with a high near 82. Calm wind becoming west northwest 5 to 7 mph in the afternoon. |
| Monday Night |
Mostly clear, with a low around 52. West wind 3 to 7 mph. |
| Tuesday |
Sunny, with a high near 80. |
| Tuesday Night |
Mostly clear, with a low around 53. |
| Wednesday |
Sunny, with a high near 80. |
| Wednesday Night |
Mostly clear, with a low around 54. |
| Thursday |
Sunny, with a high near 82. |
| Thursday Night |
Mostly clear, with a low around 54. |
| Friday |
Sunny, with a high near 81. |
| Friday Night |
Mostly clear, with a low around 54. |
| Saturday |
Mostly sunny, with a high near 78. |
Forecast from NOAA-NWS for Portola Valley CA.
