Pomona Concert band will perform at Ganesha Park at 8 p.m. If 8 p.m. is just too late for the kids, you can also attend Musical Evenings at the Rancho Santa Ana botanic gardens on Thursday nights from 7 to 8:30 p.m.
I accidentally posted Poncho Sanchez' upcoming Pomona performance under June events. As reader "Pomona Booster" pointed out below, Poncho will be performing this Saturday, July 14 at Ganesa Park at 7 p.m. There is a car show before that and an opening act at 5 p.m. called Heat. There are supposed to be other Summer Blockbuster Concerts, but I'm still looking for info on them.
I've already posted below about the Children's music concerts at Claremont's Memorial Park on Wednesday evenings at 7 p.m. Claremont's adult concerts are on Monday nights from 7:30 p.m. to 9 p.m., also at the Memorial Park bombshell.
That means in Pomona and Claremont alone, you can get live music on upcoming Monday, Wedenesday and Thursday nights in July and August, as well as Poncho this Saturday. Saturday evening will also be Pomona's Second Saturday of the month art walk on 2nd Street in the Artist Colony, if you're more in the mood for walking than dancing.