The state highway heads north as a two-lane undivided road that passes between a residential subdivision and Patrick Henry College.

SR 287 heads north through a mix of farmland and houses on large lots, crossing the South Fork of Catoctin Creek.

In the hamlet of Wheatland, the state highway intersects SR 9 and crosses the North Fork of Catoctin Creek.

At the southern town limit, Loudoun Street continues straight along the highway's alignment while SR 287 veers slightly northwest.

SR 287 reaches its northern terminus at the Maryland state line on the river's south bank.