Castro Valley, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    Mostly Cloudy
    62°
    Forecast night icon
    Night
    Chance of Rain
    53°
    Thursday 4/25
    Day
    62°
    Mostly Cloudy
    Forecast day icon
    Night
    53°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Highs in the mid 60s. West winds 15 to 20 mph.
    Night Details
    Mostly cloudy. A slight chance of drizzle after midnight. Lows in the lower 50s. West winds 10 to 20 mph.
  • Forecast day icon
    Friday
    Chance of Drizzle
    64°
    Forecast night icon
    Night
    Mostly Clear
    49°
    Friday 4/26
    Day
    64°
    Chance of Drizzle
    Forecast day icon
    Night
    49°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly cloudy. A slight chance of drizzle in the morning. Highs in the mid 60s. West winds 10 to 20 mph with gusts to around 35 mph.
    Night Details
    Mostly clear. Lows in the upper 40s. West winds 10 to 20 mph with gusts to around 35 mph.
  • Forecast day icon
    Saturday
    Sunny
    66°
    Forecast night icon
    Night
    Partly Cloudy
    50°
    Saturday 4/27
    Day
    66°
    Sunny
    Forecast day icon
    Night
    50°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 60s. West winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.
    Night Details
    Partly cloudy in the evening then becoming mostly clear. Lows in the lower 50s.
  • Forecast day icon
    Sunday
    Sunny
    71°
    Forecast night icon
    Night
    Clear
    48°
    Sunday 4/28
    Day
    71°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny breezy. Highs in the mid 60s to lower 70s.
    Night Details
    Clear. Lows in the upper 40s. Highs in the 60s to mid 70s.
  • Forecast day icon
    Monday
    Sunny
    72°
    Forecast night icon
    Night
    Clear
    49°
    Monday 4/29
    Day
    72°
    Sunny
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Lows in the upper 40s. Highs in the 60s to mid 70s.
    Night Details
    Clear. Lows in the upper 40s. Highs in the 60s to mid 70s.
  • Forecast day icon
    Tuesday
    Sunny
    76°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Tuesday 4/30
    Day
    76°
    Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Clear. Lows in the upper 40s. Highs in the 60s to mid 70s.
    Night Details
    Mostly clear. Lows in the lower 50s. Highs near 70.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    76°
    Forecast night icon
    Night
    Clear
    51°
    Wednesday 5/1
    Day
    76°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the lower 50s. Highs near 70.
    Night Details
    Clear. Low temperature around 51F. Dew point will be around 42F with an average humidity of 59%. Winds will be 8 mph from the W.
  • Forecast day icon
    Thursday
    Sunny
    71°
    Forecast night icon
    Night
    Clear
    51°
    Thursday 5/2
    Day
    71°
    Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 71F. Dew point will be around 46F with an average humidity of 55%. Winds will be 9 mph from the W.
    Night Details
    Clear. Low temperature around 51F. Dew point will be around 44F with an average humidity of 67%. Winds will be 8 mph from the W.
  • Forecast day icon
    Friday
    Sunny
    69°
    Forecast night icon
    Night
    Clear
    50°
    Friday 5/3
    Day
    69°
    Sunny
    Forecast day icon
    Night
    50°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 69F. Dew point will be around 46F with an average humidity of 53%. Winds will be 9 mph from the W.
    Night Details
    Clear. Low temperature around 50F. Dew point will be around 44F with an average humidity of 67%. Winds will be 8 mph from the SW.
  • Forecast day icon
    Saturday
    Sunny
    69°
    Forecast night icon
    Night
    Clear
    50°
    Saturday 5/4
    Day
    69°
    Sunny
    Forecast day icon
    Night
    50°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 69F. Dew point will be around 47F with an average humidity of 54%. Winds will be 8 mph from the W.
    Night Details
    Clear. Low temperature around 50F. Dew point will be around 45F with an average humidity of 68%. Winds will be 8 mph from the SW.