Castro Valley, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    50°
    Friday 4/26
    Forecast night icon
    50°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Breezy. Lows around 50. West winds 20 to 30 mph decreasing to 10 to 20 mph after midnight.
  • Forecast day icon
    Saturday
    Partly Cloudy
    65°
    Forecast night icon
    Night
    Mostly Clear
    53°
    Saturday 4/27
    Day
    65°
    Partly Cloudy
    Forecast day icon
    Night
    53°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs in the mid 60s. West winds 10 to 20 mph.
    Night Details
    Mostly clear. Lows in the lower 50s. West winds 10 to 20 mph.
  • Forecast day icon
    Sunday
    Sunny
    69°
    Forecast night icon
    Night
    Clear
    48°
    Sunday 4/28
    Day
    69°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny breezy. Highs in the mid 60s to lower 70s. West winds 5 to 15 mph increasing to 20 to 30 mph in the afternoon.
    Night Details
    Clear breezy. Lows in the upper 40s. West winds 20 to 30 mph decreasing to 10 to 20 mph after midnight.
  • Forecast day icon
    Monday
    Sunny
    70°
    Forecast night icon
    Night
    Clear
    47°
    Monday 4/29
    Day
    70°
    Sunny
    Forecast day icon
    Night
    47°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. 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
    Tuesday
    Sunny
    72°
    Forecast night icon
    Night
    Clear
    48°
    Tuesday 4/30
    Day
    72°
    Sunny
    Forecast day icon
    Night
    48°
    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
    Wednesday
    Sunny
    75°
    Forecast night icon
    Night
    Mostly Clear
    50°
    Wednesday 5/1
    Day
    75°
    Sunny
    Forecast day icon
    Night
    50°
    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 in the upper 60s to mid 70s.
  • Forecast day icon
    Thursday
    Mostly Sunny
    73°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Thursday 5/2
    Day
    73°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the lower 50s. Highs in the upper 60s to mid 70s.
    Night Details
    Mostly clear. Lows in the lower 50s. Highs in the upper 60s to mid 70s.
  • Forecast day icon
    Friday
    Mostly Sunny
    74°
    Forecast night icon
    Night
    Clear
    51°
    Friday 5/3
    Day
    74°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Day Details
    Mostly clear. Lows in the lower 50s. Highs in the upper 60s to mid 70s.
    Night Details
    Clear. Low temperature around 51F. Dew point will be around 46F with an average humidity of 70%. Winds will be 8 mph from the SW.
  • Forecast day icon
    Saturday
    Mostly Sunny
    70°
    Forecast night icon
    Night
    Partly Cloudy
    50°
    Saturday 5/4
    Day
    70°
    Mostly Sunny
    Forecast day icon
    Night
    50°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 70F. Dew point will be around 48F with an average humidity of 55%. Winds will be 9 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 50F. Dew point will be around 47F with an average humidity of 71%. Winds will be 8 mph from the SW.
  • Forecast day icon
    Sunday
    Sunny
    69°
    Forecast night icon
    Night
    Clear
    51°
    Sunday 5/5
    Day
    69°
    Sunny
    Forecast day icon
    Night
    51°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 69F. Dew point will be around 49F with an average humidity of 58%. Winds will be 8 mph from the W.
    Night Details
    Clear. Low temperature around 51F. Dew point will be around 48F with an average humidity of 75%. Winds will be 8 mph from the SW.