Portola Valley, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Friday
    Sunny
    73°
    Forecast night icon
    Night
    Rain
    49°
    Friday 5/3
    Day
    73°
    Sunny
    Forecast day icon
    Night
    49°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Sunny breezy. Highs in the mid 60s to lower 70s. West winds 5 to 10 mph increasing to 20 to 30 mph in the afternoon.
    Night Details
    Breezy. Rain after midnight. Lows in the lower 50s. West winds 20 to 30 mph. . . Becoming southwest 5 to 15 mph after midnight.
  • Forecast day icon
    Saturday
    Rain
    59°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Saturday 5/4
    Day
    59°
    Rain
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Rain in the morning then rain likely in the afternoon. Highs in the upper 50s. South winds 10 to 20 mph. . . Becoming west in the afternoon.
    Night Details
    Partly cloudy in the evening then becoming mostly clear. Lows in the upper 40s. West winds 10 to 20 mph.
  • Forecast day icon
    Sunday
    Sunny
    61°
    Forecast night icon
    Night
    Clear
    41°
    Sunday 5/5
    Day
    61°
    Sunny
    Forecast day icon
    Night
    41°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the lower 60s. West winds 10 to 20 mph.
    Night Details
    Clear. Lows in the upper 40s.
  • Forecast day icon
    Monday
    Mostly Sunny
    63°
    Forecast night icon
    Night
    Mostly Clear
    45°
    Monday 5/6
    Day
    63°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs in the mid 60s to lower 70s. Lows in the upper 40s.
    Night Details
    Mostly clear. Highs in the mid 60s to lower 70s. Lows in the upper 40s.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    66°
    Forecast night icon
    Night
    Clear
    43°
    Tuesday 5/7
    Day
    66°
    Mostly Sunny
    Forecast day icon
    Night
    43°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs in the mid 60s to lower 70s. Lows in the upper 40s.
    Night Details
    Clear. Lows in the lower 50s. Highs in the 60s to upper 70s.
  • Forecast day icon
    Wednesday
    Sunny
    74°
    Forecast night icon
    Night
    Clear
    48°
    Wednesday 5/8
    Day
    74°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Lows in the lower 50s. Highs in the 60s to upper 70s.
    Night Details
    Clear. Lows in the lower 50s. Highs in the 60s to upper 70s.
  • Forecast day icon
    Thursday
    Sunny
    81°
    Forecast night icon
    Night
    Clear
    51°
    Thursday 5/9
    Day
    81°
    Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Day Details
    Clear. Lows in the lower 50s. Highs in the 60s to upper 70s.
    Night Details
    Clear. Low temperature around 51F. Dew point will be around 45F with an average humidity of 63%. Winds will be 3 mph from the NW.
  • Forecast day icon
    Friday
    Sunny
    76°
    Forecast night icon
    Night
    Clear
    51°
    Friday 5/10
    Day
    76°
    Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 76F. Dew point will be around 51F with an average humidity of 53%. Winds will be 3 mph from the SW.
    Night Details
    Clear. Low temperature around 51F. Dew point will be around 47F with an average humidity of 70%. Winds will be 3 mph from the S.
  • Forecast day icon
    Saturday
    Sunny
    76°
    Forecast night icon
    Night
    Clear
    49°
    Saturday 5/11
    Day
    76°
    Sunny
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 76F. Dew point will be around 53F with an average humidity of 55%. Winds will be 3 mph from the SW.
    Night Details
    Clear. Low temperature around 49F. Dew point will be around 48F with an average humidity of 75%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Sunday
    Sunny
    72°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Sunday 5/12
    Day
    72°
    Sunny
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Day Details
    Sunny. High temperature around 72F. Dew point will be around 53F with an average humidity of 62%. Winds will be 4 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 47F. Dew point will be around 49F with an average humidity of 83%. Winds will be 4 mph from the SW.