Portola Valley, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Clear
    41°
    Tuesday 4/30
    Forecast night icon
    41°
    Clear
    Hourly
    Night Details
    Clear. Lows in the upper 40s. West winds 10 to 20 mph.
  • Forecast day icon
    Wednesday
    Sunny
    73°
    Forecast night icon
    Night
    Clear
    44°
    Wednesday 5/1
    Day
    73°
    Sunny
    Forecast day icon
    Night
    44°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny breezy. Highs in the upper 60s to mid 70s. Northwest winds 5 to 15 mph increasing to 20 to 30 mph in the afternoon.
    Night Details
    Clear breezy. Lows in the lower 50s. West winds 20 to 30 mph decreasing to 5 to 15 mph after midnight.
  • Forecast day icon
    Thursday
    Sunny
    73°
    Forecast night icon
    Night
    Mostly Clear
    47°
    Thursday 5/2
    Day
    73°
    Sunny
    Forecast day icon
    Night
    47°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 60s to mid 70s. Northwest winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.
    Night Details
    Mostly clear. Breezy. Lows in the lower 50s. West winds 20 to 30 mph decreasing to 10 to 20 mph after midnight.
  • Forecast day icon
    Friday
    Sunny
    72°
    Forecast night icon
    Night
    Chance of Rain
    48°
    Friday 5/3
    Day
    72°
    Sunny
    Forecast day icon
    Night
    48°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 60s to mid 70s.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A slight chance of rain. Lows in the lower 50s.
  • Forecast day icon
    Saturday
    Chance of Rain
    59°
    Forecast night icon
    Night
    Partly Cloudy
    42°
    Saturday 5/4
    Day
    59°
    Chance of Rain
    Forecast day icon
    Night
    42°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of rain. Highs in the lower 60s.
    Night Details
    Partly cloudy. Lows in the upper 40s. Highs in the 60s.
  • Forecast day icon
    Sunday
    Partly Cloudy
    61°
    Forecast night icon
    Night
    Partly Cloudy
    42°
    Sunday 5/5
    Day
    61°
    Partly Cloudy
    Forecast day icon
    Night
    42°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Lows in the upper 40s. Highs in the 60s.
    Night Details
    Partly cloudy. Lows in the upper 40s. Highs in the 60s.
  • Forecast day icon
    Monday
    Partly Cloudy
    63°
    Forecast night icon
    Night
    Partly Cloudy
    43°
    Monday 5/6
    Day
    63°
    Partly Cloudy
    Forecast day icon
    Night
    43°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Lows in the upper 40s. Highs in the 60s.
    Night Details
    Partly cloudy. Lows in the upper 40s. Highs in the 60s.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    68°
    Forecast night icon
    Night
    Mostly Clear
    43°
    Tuesday 5/7
    Day
    68°
    Partly Cloudy
    Forecast day icon
    Night
    43°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly cloudy. Lows in the upper 40s. Highs in the 60s.
    Night Details
    Mostly clear. Low temperature around 43F. Dew point will be around 43F with an average humidity of 78%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Wednesday
    Sunny
    68°
    Forecast night icon
    Night
    Clear
    43°
    Wednesday 5/8
    Day
    68°
    Sunny
    Forecast day icon
    Night
    43°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 68F. Dew point will be around 46F with an average humidity of 61%. Winds will be 6 mph from the NW.
    Night Details
    Clear. Low temperature around 43F. Dew point will be around 43F with an average humidity of 78%. Winds will be 4 mph from the W.
  • Forecast day icon
    Thursday
    Sunny
    68°
    Forecast night icon
    Night
    Clear
    45°
    Thursday 5/9
    Day
    68°
    Sunny
    Forecast day icon
    Night
    45°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 68F. Dew point will be around 47F with an average humidity of 60%. Winds will be 4 mph from the W.
    Night Details
    Clear. Low temperature around 45F. Dew point will be around 44F with an average humidity of 77%. Winds will be 3 mph from the W.
  • Forecast day icon
    Friday
    Sunny
    69°
    Forecast night icon
    Night
    Clear
    47°
    Friday 5/10
    Day
    69°
    Sunny
    Forecast day icon
    Night
    47°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 69F. Dew point will be around 50F with an average humidity of 63%. Winds will be 3 mph from the W.
    Night Details
    Clear. Low temperature around 47F. Dew point will be around 46F with an average humidity of 79%. Winds will be 4 mph from the SW.