you probably need your wheels balanced, go to your local tire shop and ave them do it
have the front end checked could be a number of things
== == Bad Tire or Tires.
Bad tire, wheel, bearing, steering component,..............
Tire out of balance, bent wheel, drive shaft bent, loose or worn steering parts.
Wheels are out of balance
You probably need to get your tires balanced. Or replaced. If the bias goes (steel belt breaks or shifts), the car will waddle at low speeds, and the steering wheel will shake at high speeds.
have front suspension checked
What make the steering wheel shake is the tires that need wheel balance.
You rotors are warped and will need replaced/resurfaced.
A certain speeds, your steering wheel starts to shake.
Not the steering wheel shake itself, however what is causing the steering wheel shake, can certainly be extremely dangerous and potentially cause you to lose control of the vehicle. **GET IT CHECKED OUT BEFORE THAT HAPPENS**
Alignment
Wheel balance