Hourly Weather Forecast - Castro Valley, CA

50% Chance of Light Rain

50% Chance Rain Showers

50% Chance Rain Showers

50% Chance Rain Showers

50% Chance Rain Showers

40% Chance Rain Showers

30% Chance Rain Showers

Mostly Sunny

Mostly Sunny

Mostly Sunny

Partly Cloudy

Partly Cloudy

Partly Cloudy

Partly Cloudy

Partly Cloudy

Partly Cloudy

Partly Cloudy

Partly Cloudy

Mostly Sunny

Clear

Clear

Clear

Clear