The Cedar Rapids Rollergirls are in action Saturday.

There are more than 200 event listings for fun things to do through the weekend. Below, we highlight 10 that you can do without spending much money.

Jazz Under the Stars: The Fez 7 p.m. today (8/2), Noelridge Park, CR

Uptown Getdown 6:30 p.m. today (8/2), City Square Park, Marion

Five Seasons Ski Team Show 7 p.m. today (8/2), Ellis Park Harbor, CR

CR Municipal Band Concert 7:30 p.m. Sunday (8/5), Bever Park, CR

MEGABrain Exhibit – 10 a.m. to 3 p.m. today (8/3), Coral Ridge Mall, Coralville

Uptown Friday Nights: JIF and the Choosy Mothers $5, 5 p.m. Friday (8/3), Greene Square Park, Cedar Rapids

Indian Creek Nature Center: What’s in Your Pocket – $5-$6, 9 a.m. Saturday (8/4), CR

Dive-in Movie Night: ‘Despicable Me’ – $4.75, 7:30 p.m. Friday (8/3), Noelridge Aquatic Center, CR

Tropical Iowa Night – $10, 4 p.m. Saturday (8/4), Fireside Winery, Marengo

Rollergirls vs. McLean County Missfitss – $10, 7 p.m. Saturday (8/4), Cedar Rapids Ice Arena