Portola Valley, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Monday
    Sunny
    66°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Monday 5/6
    Day
    66°
    Sunny
    Forecast day icon
    Night
    43°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 60s. Northwest winds 5 to 10 mph. . . Becoming west 10 to 20 mph in the afternoon.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s. West winds 10 to 20 mph.
  • Forecast day icon
    Tuesday
    Sunny
    68°
    Forecast night icon
    Night
    Clear
    45°
    Tuesday 5/7
    Day
    68°
    Sunny
    Forecast day icon
    Night
    45°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 60s to lower 70s. Northwest winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.
    Night Details
    Clear. Lows around 50. Northwest winds 10 to 20 mph.
  • Forecast day icon
    Wednesday
    Sunny
    77°
    Forecast night icon
    Night
    Clear
    50°
    Wednesday 5/8
    Day
    77°
    Sunny
    Forecast day icon
    Night
    50°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the 70s. North winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.
    Night Details
    Clear. Lows in the mid 50s.
  • Forecast day icon
    Thursday
    Sunny
    81°
    Forecast night icon
    Night
    Clear
    48°
    Thursday 5/9
    Day
    81°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Highs in the mid 70s to lower 80s. Lows in the mid 50s.
    Night Details
    Clear. Highs in the mid 70s to lower 80s. Lows in the mid 50s.
  • Forecast day icon
    Friday
    Sunny
    77°
    Forecast night icon
    Night
    Clear
    48°
    Friday 5/10
    Day
    77°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Highs in the mid 70s to lower 80s. Lows in the mid 50s.
    Night Details
    Clear. Highs in the mid 70s to lower 80s. Lows in the mid 50s.
  • Forecast day icon
    Saturday
    Mostly Sunny
    78°
    Forecast night icon
    Night
    Mostly Clear
    48°
    Saturday 5/11
    Day
    78°
    Mostly Sunny
    Forecast day icon
    Night
    48°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs in the upper 60s to lower 80s. Lows in the mid 50s.
    Night Details
    Mostly clear. Highs in the upper 60s to lower 80s. Lows in the mid 50s.
  • Forecast day icon
    Sunday
    Mostly Sunny
    72°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Sunday 5/12
    Day
    72°
    Mostly Sunny
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly clear. Highs in the upper 60s to lower 80s. Lows in the mid 50s.
    Night Details
    Partly cloudy. Low temperature around 46F. Dew point will be around 47F with an average humidity of 82%. Winds will be 4 mph from the W.
  • Forecast day icon
    Monday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Monday 5/13
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 71F. Dew point will be around 52F with an average humidity of 69%. Winds will be 4 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 45F. Dew point will be around 48F with an average humidity of 86%. Winds will be 5 mph from the W.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    70°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Tuesday 5/14
    Day
    70°
    Partly Cloudy
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 70F. Dew point will be around 53F with an average humidity of 69%. Winds will be 4 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 47F. Dew point will be around 48F with an average humidity of 85%. Winds will be 5 mph from the SW.
  • Forecast day icon
    Wednesday
    Mostly Cloudy
    70°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Wednesday 5/15
    Day
    70°
    Mostly Cloudy
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 70F. Dew point will be around 52F with an average humidity of 68%. Winds will be 3 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 47F. Dew point will be around 48F with an average humidity of 82%. Winds will be 4 mph from the SW.