Just a word of caution: Yes it is the first weekend after Labor Day, still summer right? Not necessarily in Estes Park. I've been at these games where it has rained, sleeted, been windy, cold, hot, and snowed, all on the same day! So take clothing along just in case. You've been warned, now do what you want.
You are so right! Those of us who are used to playing at those altitudes (7500 ft) know how fickle the weather can be. Since it's going to be in September I'm hoping for some beautiful 'Indian Summer' weather rather than the 87 degrees they're getting this week.