Golden is about 15 miles west of Denver. The easiest way to get from DIA to Golden is by shuttle bus, operated by Golden West Commuter. The fare is $26 from DIA to Golden, one way. Reservations are not required; there is a desk in the main terminal building.
[There are city buses from DIA to Denver and from Denver to Golden, but there is no direct bus between DIA and Golden.]
If you decide to rent a car at DIA, you will be able to park on campus. Most of the major rental companies have desks at DIA; there is a list here.
For directions to CSM, look here at the `Denver area map'. To drive from DIA to Golden, leave DIA along Pena Boulevard. After about 10 miles, this meets I-70 at junction 285; go west towards Denver. After 20 miles, leave I-70 at junction 265 along highway 58; this road is signposted for Golden and CSM. After about 5 miles, take the exit for Washington Avenue; at the traffic lights, go left. Drive 12 blocks and then turn right on 19th Street. After 4 blocks, turn right on Elm Street; Weaver Towers are to your right.
The reception desk at Weaver Towers will be staffed on Saturday and Sunday, from 2-10pm. If you arrive outside these times, there is a red phone with a number to call; late arrivals are expected.
Weather. It should be pleasant, with a June average of 79F (26C). However, Colorado weather can vary widely! For a 10-day prediction, go here and enter the zipcode `80401'.