Hi Folks

I am planning to drive from Las Vegas to Zion and Bryce
national parks this weekend and drive to Grand Canyon early
next week. I am driving a rental car (Buick Century).
The weather channel predicts snow and snow showers
during my stay at Bryce and drive to the Grand Canyon(South Rim).

I would love to hear recommendations and previous experiences
regarding driving and (light to medium) hiking conditions.
I haven't driven in snow as I am from Southern California.
Is driving painful in snowy conditions in these areas?

Thanks in advance
Jenn