Weather forecast for: 5 Miles SW Portola Valley CA
Last Update: 8:02 pm PDT Sep 27, 2026
Tonight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 48. West wind around 5 mph becoming calm after midnight.
Monday: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night: Partly cloudy, with a low around 49. West northwest wind around 5 mph becoming calm in the evening.
Tuesday: Sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tuesday Night: Mostly clear, with a low around 53. West northwest wind around 5 mph becoming calm in the evening.
Wednesday: Sunny, with a high near 83.
Wednesday Night: Partly cloudy, with a low around 56.
Thursday: Sunny, with a high near 76.
Thursday Night: Partly cloudy, with a low around 56.
Friday: Mostly sunny, with a high near 74.
Friday Night: Partly cloudy, with a low around 56.
Saturday: Sunny, with a high near 78.
Saturday Night: Partly cloudy, with a low around 56.
Sunday: Sunny, with a high near 77.
WeatherWorld.com
