Vail Lake is a large reservoir in western Riverside County, California.

It is located on Temecula Creek, in the Butterfield Valley, south of Oak Mountain, of the Black Hills, in the Santa Margarita River watershed.

[3] Vail Lake is supplied by storm water runoff from Kolb, Temecula, and Wilson Creeks.

[5] In 1995, a members-only resort facility was opened at the location of the former park; and in 2000, the area was re-opened to the public on an annual-fee basis.

Recreational activities at Vail Lake include fishing, boating, RV, mountain biking, miniature golf and swimming.