Portola Valley, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    51°
    Wednesday 4/17
    Forecast night icon
    51°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Lows in the lower 50s. West winds 5 to 10 mph.
  • Forecast day icon
    Thursday
    Partly Cloudy
    74°
    Forecast night icon
    Night
    Mostly Cloudy
    49°
    Thursday 4/18
    Day
    74°
    Partly Cloudy
    Forecast day icon
    Night
    49°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly cloudy. Highs in the 70s. Light winds. . . Becoming northwest 5 to 15 mph in the afternoon.
    Night Details
    Mostly cloudy. Lows in the lower 50s. West winds 5 to 15 mph.
  • Forecast day icon
    Friday
    Mostly Cloudy
    67°
    Forecast night icon
    Night
    Drizzle
    45°
    Friday 4/19
    Day
    67°
    Mostly Cloudy
    Forecast day icon
    Night
    45°
    Drizzle
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming sunny. Highs in the mid 60s to lower 70s. West winds 5 to 15 mph.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Patchy drizzle. Lows around 50. West winds 10 to 20 mph. . . Becoming southwest 5 to 10 mph after midnight.
  • Forecast day icon
    Saturday
    Sunny
    68°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Saturday 4/20
    Day
    68°
    Sunny
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 60s to lower 70s.
    Night Details
    Mostly clear. Lows in the lower 50s. Highs in the upper 60s to mid 70s.
  • Forecast day icon
    Sunday
    Mostly Sunny
    71°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Sunday 4/21
    Day
    71°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the lower 50s. Highs in the upper 60s to mid 70s.
    Night Details
    Partly cloudy. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
  • Forecast day icon
    Monday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Monday 4/22
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
    Night Details
    Partly cloudy. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    61°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Tuesday 4/23
    Day
    61°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
    Night Details
    Partly cloudy. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    66°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Wednesday 4/24
    Day
    66°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly cloudy. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
    Night Details
    Mostly clear. Low temperature around 46F. Dew point will be around 46F with an average humidity of 83%. Winds will be 5 mph from the W.
  • Forecast day icon
    Thursday
    Mostly Cloudy
    65°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Thursday 4/25
    Day
    65°
    Mostly Cloudy
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 65F. Dew point will be around 50F with an average humidity of 73%. Winds will be 6 mph from the W.
    Night Details
    Mostly clear. Low temperature around 46F. Dew point will be around 46F with an average humidity of 84%. Winds will be 5 mph from the W.
  • Forecast day icon
    Friday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Clear
    46°
    Friday 4/26
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    Clear
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 67F. Dew point will be around 51F with an average humidity of 73%. Winds will be 5 mph from the W.
    Night Details
    Clear. Low temperature around 46F. Dew point will be around 46F with an average humidity of 81%. Winds will be 5 mph from the W.