I am in Moore about 20 minutes from the stadium...it's a solid stadium...hot time of year here in Oklahoma...bring the sunblock for sure. Things to do around the area:
1) OKC Memorial and Museum (Alfred P Murrah Bldg)
2) Pops in Arcadia off of Route 66 is a great place to grab a burger and see the old HWY
3) OKC Zoo
4) National Cowboy Hall of Fame
5) Bricktown...loads of eats/bars, etc (Toby Keiths I love this Bar and Grill, Mickey Mantle's Steakhouse, Cattlemen's Steakhouse, Bricktown Brewery, etc.)
6) OKC Redhawks (Triple A team of the Houston Astros)
7) National Softball Hall of Fame
8) A few surrounding casinos (Windstar, Remington Park, etc.)
9) Remington Park Horse Racing/casino
10) White Water Bay...outdoor water park
11) Frontier City Amusement Park
12) OKC State Capitol
13) Stockyard City
14) Penn Square Mall
15) Warren Theatre in Moore
Avoid...all major interstates during the evening rushhour...430ish to 6 pmish...its like NASCAR...
Hope this helps ya out