The route runs mostly through suburban areas of central Montgomery County, passing some farmland in Worcester Township.

PA 363 begins at a partial cloverleaf interchange with the US 422 freeway (Pottstown Expressway) near Valley Forge National Historical Park in Montgomery County, from where Trooper Road continues south to a dead end at the Schuylkill River.

[3][4] PA 363 continues as a two-lane undivided road past more homes before it reaches the Ridge Pike/West Main Street junction.

At this point, the route turns northwest onto Ridge Pike and fully enters Lower Providence Township, passing businesses as a three-lane road with a center left-turn lane.

PA 363 turns northeast onto two-lane Park Avenue in the community of Trooper and runs through more residential areas.

A short distance after entering Worcester Township, the route comes to the community of Fairview Village and crosses Germantown Pike in a commercial area.

[3][4] Upon crossing Germantown Pike, PA 363 becomes known as Valley Forge Road and continues into agricultural areas with scattered residential neighborhoods.

The amount of development increases until the road comes to the junction with PA 73 (Skippack Pike) in the community of Worcester.

PA 363 heads to the southeast of North Penn High School and runs past a mix of homes and businesses as it gains a center left-turn lane on the approach to the Allentown Road junction.

A short distance later, the route enters the borough of Lansdale and passes homes as a two-lane road.