Castro Valley, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    51°
    Monday 4/22
    Forecast night icon
    51°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Lows in the lower 50s. Southwest winds 5 to 15 mph.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Tuesday 4/23
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly cloudy. Highs in the mid 60s to lower 70s. South winds 10 to 20 mph.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. Southwest winds 10 to 20 mph. . . Becoming south 5 to 10 mph after midnight.
  • Forecast day icon
    Wednesday
    Mostly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Wednesday 4/24
    Day
    67°
    Mostly Cloudy
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Highs in the upper 60s. South winds around 5 mph. . . Becoming southwest 5 to 15 mph in the afternoon.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. West winds 10 to 20 mph.
  • Forecast day icon
    Thursday
    Partly Cloudy
    63°
    Forecast night icon
    Night
    Mostly Cloudy
    52°
    Thursday 4/25
    Day
    63°
    Partly Cloudy
    Forecast day icon
    Night
    52°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly cloudy. Breezy. Highs in the mid 60s.
    Night Details
    Mostly cloudy. Lows in the mid 50s. Highs in the mid 60s.
  • Forecast day icon
    Friday
    Mostly Cloudy
    66°
    Forecast night icon
    Night
    Mostly Clear
    48°
    Friday 4/26
    Day
    66°
    Mostly Cloudy
    Forecast day icon
    Night
    48°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Lows in the mid 50s. Highs in the mid 60s.
    Night Details
    Mostly clear. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
  • Forecast day icon
    Saturday
    Mostly Sunny
    69°
    Forecast night icon
    Night
    Mostly Clear
    52°
    Saturday 4/27
    Day
    69°
    Mostly Sunny
    Forecast day icon
    Night
    52°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
    Night Details
    Mostly clear. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
  • Forecast day icon
    Sunday
    Mostly Sunny
    70°
    Forecast night icon
    Night
    Mostly Clear
    49°
    Sunday 4/28
    Day
    70°
    Mostly Sunny
    Forecast day icon
    Night
    49°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
    Night Details
    Mostly clear. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
  • Forecast day icon
    Monday
    Mostly Sunny
    73°
    Forecast night icon
    Night
    Clear
    50°
    Monday 4/29
    Day
    73°
    Mostly Sunny
    Forecast day icon
    Night
    50°
    Clear
    Forecast night icon
    Day Details
    Mostly clear. Lows in the lower 50s. Highs in the mid 60s to lower 70s.
    Night Details
    Clear. Low temperature around 50F. Dew point will be around 44F with an average humidity of 67%. Winds will be 7 mph from the W.
  • Forecast day icon
    Tuesday
    Sunny
    75°
    Forecast night icon
    Night
    Clear
    51°
    Tuesday 4/30
    Day
    75°
    Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 75F. Dew point will be around 45F with an average humidity of 47%. Winds will be 7 mph from the NW.
    Night Details
    Clear. Low temperature around 51F. Dew point will be around 44F with an average humidity of 58%. Winds will be 6 mph from the W.
  • Forecast day icon
    Wednesday
    Sunny
    75°
    Forecast night icon
    Night
    Clear
    52°
    Wednesday 5/1
    Day
    75°
    Sunny
    Forecast day icon
    Night
    52°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 75F. Dew point will be around 44F with an average humidity of 43%. Winds will be 6 mph from the NW.
    Night Details
    Clear. Low temperature around 52F. Dew point will be around 43F with an average humidity of 56%. Winds will be 7 mph from the W.