Weather words of the week:

Western U.S. front: A frontal system emerging from the west producing showers, thunderstorms and heavy rains while moving fast or slow. The system can last for more than one day, preventing more pleasant weather from arriving.

Friday:

Mostly cloudy with a 40 percent chance of showers.

High: 74

Low: 57

Saturday:

Mostly cloudy with a 40 percent chance of showers.

High: 76

Low: 58

Sunday:

Mostly cloudy with a 30 percent chance of showers.

High: 77

Low: 59