Portola Valley, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Saturday
    Rain
    53°
    Forecast night icon
    Night
    Chance of Rain
    39°
    Saturday 5/4
    Day
    53°
    Rain
    Forecast day icon
    Night
    39°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Rain likely. Highs in the upper 50s. West winds 10 to 20 mph.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A slight chance of drizzle in the evening. A chance of drizzle after midnight. Lows in the upper 40s. West winds 10 to 20 mph.
  • Forecast day icon
    Sunday
    Sunny
    63°
    Forecast night icon
    Night
    Clear
    39°
    Sunday 5/5
    Day
    63°
    Sunny
    Forecast day icon
    Night
    39°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the lower 60s. Northwest winds 10 to 20 mph.
    Night Details
    Clear. Lows in the upper 40s. West winds 10 to 20 mph. . . Becoming 5 to 10 mph after midnight.
  • Forecast day icon
    Monday
    Partly Cloudy
    65°
    Forecast night icon
    Night
    Mostly Clear
    43°
    Monday 5/6
    Day
    65°
    Partly Cloudy
    Forecast day icon
    Night
    43°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny in the morning then becoming partly cloudy. Highs in the mid 60s. West winds around 5 mph increasing to 10 to 20 mph in the afternoon.
    Night Details
    Mostly clear. Lows in the upper 40s.
  • 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.
    Night Details
    Clear. Lows in the lower 50s. Highs in the 70s.
  • Forecast day icon
    Wednesday
    Sunny
    75°
    Forecast night icon
    Night
    Clear
    51°
    Wednesday 5/8
    Day
    75°
    Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Lows in the lower 50s. Highs in the 70s.
    Night Details
    Clear. Lows in the lower 50s. Highs in the 70s.
  • Forecast day icon
    Thursday
    Sunny
    80°
    Forecast night icon
    Night
    Clear
    52°
    Thursday 5/9
    Day
    80°
    Sunny
    Forecast day icon
    Night
    52°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Highs in the 70s to mid 80s. Lows in the mid 50s.
    Night Details
    Clear. Highs in the 70s to mid 80s. Lows in the mid 50s.
  • Forecast day icon
    Friday
    Sunny
    86°
    Forecast night icon
    Night
    Clear
    50°
    Friday 5/10
    Day
    86°
    Sunny
    Forecast day icon
    Night
    50°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Highs in the 70s to mid 80s. Lows in the mid 50s.
    Night Details
    Clear. Low temperature around 50F. Dew point will be around 47F with an average humidity of 71%. Winds will be 5 mph from the S.
  • Forecast day icon
    Saturday
    Sunny
    72°
    Forecast night icon
    Night
    Clear
    48°
    Saturday 5/11
    Day
    72°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 72F. Dew point will be around 52F with an average humidity of 61%. Winds will be 3 mph from the SW.
    Night Details
    Clear. Low temperature around 48F. Dew point will be around 49F with an average humidity of 83%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Sunday
    Partly Cloudy
    71°
    Forecast night icon
    Night
    Clear
    47°
    Sunday 5/12
    Day
    71°
    Partly Cloudy
    Forecast day icon
    Night
    47°
    Clear
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 71F. Dew point will be around 53F with an average humidity of 64%. Winds will be 4 mph from the W.
    Night Details
    Clear. Low temperature around 47F. Dew point will be around 49F with an average humidity of 84%. Winds will be 4 mph from the W.
  • Forecast day icon
    Monday
    Mostly Cloudy
    70°
    Forecast night icon
    Night
    Clear
    47°
    Monday 5/13
    Day
    70°
    Mostly Cloudy
    Forecast day icon
    Night
    47°
    Clear
    Forecast night icon
    Day Details
    Mostly cloudy. High temperature around 70F. Dew point will be around 52F with an average humidity of 65%. Winds will be 5 mph from the W.
    Night Details
    Clear. Low temperature around 47F. Dew point will be around 48F with an average humidity of 85%. Winds will be 5 mph from the W.