The western hog-nosed snake is about 60 cm long. The body is slightly stubby, the snout is pointed and turned inward, with brown stripes juxtaposed along the center of the back and similar stripes on the sides of the body.

The body color of western hog-nosed snake is mostly dark yellow or tan background plus Dark spots, its abdomen and tail have many large areas of black areas, the underside of the belly is dark yellow or tan, but sometimes it also shows varying degrees of orange.