IMAX 3D at Red Rock is as good as you'll get in Vegas. Only one 4DX theatre I'm aware of in the US - that's LA Live. About a five hour drive to LA if you're desperate.

Updated to add: Actually, it looks like Regal has five 4DX theatres in the US:

Regal L.A. LIVE: A Barco Innovation Center
Los Angeles, CA

Regal Pointe Orlando Stadium 20 & IMAX
Orlando, FL

Regal E-Walk Stadium 13 & RPX
New York, NY

Regal Union Square Stadium 14
New York, NY

Regal Meridian 16
Seattle, WA